2015840301An Analytical Solution for the Laminar Forced Convection in a Pipe with Temperature-Dependent Heat Generation22An analytical solution is presented for the case of laminar forced convection in a pipe with heat generation linearly dependent on the local temperature of the fluid. The flow is fully developed and the boundary conditions of the third kind. Within the general analysis presented, some particular cases are identified and discussed. A detailed analysis of the thermal entrance is given. It is shown that in the fully developed region the temperature distribution does not depend on the axial coordinate. An analytical expression of the fully developed Nusselt number is given. Finally, the practical significance of the problem is discussed.641650T.PessoENDIF, Engineering Department, Universits of Ferrara, Ferrara (FE), 44122, ItalyENDIF, Engineering Department, Universits of Ferrara, Ferrara (FE), 44122, Italypayst.pesso@jafmonline.netS.PivaENDIF, Engineering Department, Universits of Ferrara, Ferrara (FE), 44122, ItalyENDIF, Engineering Department, Universits of Ferrara, Ferrara (FE), 44122, Italypaysstefano.piva@unife.itForced convection Internal heat generation Ohmic heating Third kind boundary condition.[Abramowitz, M. and I. A. Stegun (1972).
Handbook of Mathematical Functions, with Formulas, Graphs, and Mathematical Tables, ninth ed., Dover, New York.##
Barr, B. J. and C. L. Wiginton (1977). Entrance region heat transfer with axial conduction in a cylindrical tube: Constant temperature wall, Physics of Fluids 20, 2151-2152.##
Barr, B. J. and C. L. Wiginton (1977). Entrance region heat transfer with axial conduction in a cylindrical tube: Constant heat flux. Physics of Fluids 20, 2153-2154.##
Darvishi, H., A. Hosainpour, F. Nargesi, M. H.
Khoshtaghaza and H. Torang (2011). Ohmic
Processing: Temperature Dependent Electrical
Conductivities of Lemon Juice, Modern Applied
Science 5, 209-216.##
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Faghri, M. and E. M. Sparrow (1980).
Simultaneous wall and fluid axial conduction in laminar pipe-flow heat transfer. Journal of Heat Transfer, Trans. ASME 102, 58-63.##
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Sparrow, E. M. and R. Siegel (1958). Laminar tube flow with arbitrary internal heat sources and wall heat transfer. Nuclear Science Engineering
4, 239-254.##
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Topper, L. (1955). Forced heat convection in cylindrical channels: some problems involving potential and parabolic velocity distribution. Chemical Engineering Science 5, 13-19.
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]Upward Flow Boiling to DI-Water and Cuo Nanofluids Inside the Concentric Annuli22In this work, flow boiling heat transfer coefficients of deionized water and copper oxide water-based nanofluids at different operating conditions have been experimentally measured and compared. The liquid flowed in an annular space. According to the experiments, two distinguished heat transfer regions with two different mechanisms can be seen namely forced convective and nucleate boiling regions. Results demonstrated that with increasing the applied heat flux, flow boiling heat transfer coefficient increases for both of test fluids at both heat transfer regions. In addition to, by increasing the flow rate of fluid, the heat transfer coefficient dramatically increases at both regions. Influence of inlet temperature of fluid to the
annulus as a complicated parameter has been investigated and briefly discussed. Results showed that inlet temperature of fluid displaces the boundary between forced convection and nucleate boiling areas such that with increasing the inlet temperature, nucleation mechanism become dominant mechanism at lower heat fluxes. Furthermore, higher heat transfer coefficient can be obtained due to interactions of bubbles and local agitations. Also, Chen type model was modified in terms of thermo-physical properties and examined to experimental data. Results showed that experimental data are in a good agreement with those of obtained by the correlation with deviation up to 30%.651659M. M.SarafrazFaculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, IranFaculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, Iranpaysmohamadmohsensarafraz@gmail.comF.HormoziFaculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, IranFaculty of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, Iranpaysf.hormozi@jafmonline.netS. M.PeyghambarzadehDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr branch, Islamic Azad University, Mahshahr, IranDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr branch, Islamic Azad University, Mahshahr, Iranpayss.m.peyghambarzadeh@jafmonline.netN.VaeliDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr branch, Islamic Azad University, Mahshahr, IranDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr branch, Islamic Azad University, Mahshahr, Iranpaysn.vaeli@jafmonline.netFlow boiling Heat transfer Pure distillated water Forced convection Annulus.[Cheng, L. and L. Liu (2013). Boiling and two-phase flow phenomena of refrigerant-based nanofluids Fundamentals, applications and challenges. Int. J. Refrigeration 36, 421- 446##
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322-329.##
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Ding, Y. H., D. AliasWen and R. A. Williams (2006). Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids), Int. J. Heat Mass Trans. 49(1–2), 240–250.##
Duangthongsuk, W. and S. Wongwises (2008). effects of thermo-physical properties models on the predicting of the convective heat transfer coefficient for low concentration nanofluid, Int. Comm. Heat Mass Trans. 35, 1320-1326.##
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351–358##
He, Y., Y. Jin, H. Chen, Y. Ding, D. Cang and H.
Lu (2007). Heat transfer and flow behavior of aqueous suspensions of TiO2 nanoparticles
(nanofluids) flowing upward through a vertical
pipe, Int. J. Heat Mass Trans. 50, 2272– 2281.##
Henderson, K. , Y. G. Park, L. Liu and A. M. Jacobi (2010). Flow-boiling heat transfer of R-134a based nanofluids in a horizontal tube. Int. J. Heat Mass Trans. 5, 944–951.##
Jeong, Y. H., M. S. Sarwar and S. H. Chang (2008).
Flow boiling CHF enhancement with surfactant solutions under atmospheric pressure, Int. J. Heat Mass Trans. 51, 1913–1919.##
Jeong, Y. H., W. J. Chang and S.H. Chang (2008).
Wettability of heated surfaces under pool boiling using surfactant solutions and
nanofluids, Int. J. Heat Mass Tran. 51, 3025–
3031.##
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49(25–26), 5070–5074.##
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153-157.##
Kim, H. D., J. B. Kim and M. H. Kim (2007).
Experimental studies on CHF characteristics of nano-fluids at pool boiling, Int. J. Multiphase
Flow 33, 691–706.##
Kim, S. J., I. C. Bang, J. Buongiorno and L. W. Hu, (2007). Study of pool boiling and critical heat flux enhancement in nanofluids, Bull Polish Academy Sci. Tech. Sci. 55.##
Kim, S. J., T. McKrell, J. Buongiorno and L. W. Hu (2009). Experimental study of flow critical heat flux in alumina–water, zinc-oxide–water and diamond–water nanofluids, J. Heat Transfer
131(4).##
Kim, T. I. , Y. H. Jeong and S. H. Chang (2010).
An experimental study on CHF enhancement in flow boiling using Al2O3 nano-fluid, Int. J.
Heat Mass Tran. 53, 1015– 1022.##
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Describing Uncertainties in Single-Sample
Experiments, Mechanical Engineering 75, 3-8##
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Peyghambarzadeh, S. M., S. H. Hashemabadi ,M.
Naraki and Y. Vermahmoudi (2013). Experimental study of overall heat transfer coefficient in the application of dilute nanofluids in the car radiator, Applied Therm. Eng. 52, 8-16.##
Sarafraz, M. M. (2013). Experimental Investigation on Pool Boiling Heat Transfer to Formic Acid, Propanol and 2-Butanol Pure Liquids under the atmospheric pressure, J App. Fluid Mech. 6(1),
73-79.##
Sarafraz, M. M., S. M. Peyghambarzadeh, S. A.
Alavi and N. Fazel Vaeli (2012). Nucleate pool boiling heat transfer of binary nano-mixtures under atmospheric pressure around a smooth horizontal cylinder, periodica polytechnic, chem. Eng. 56, 71–77.##
Sarafraz, M. M., F. Hormozi and M. Kamalgharibi (2014). Sedimentation and convective boiling heat transfer of CuO-water/ethylene glycol nanofluids, Heat mass trans. J. 50, 1237-1249##
Sarafraz, M. M. and S. M. Peyghambarzadeh (2013). Experimental study on sub-cooled flow boiling heat transfer to water–diethylene glycol mixtures as a coolant inside a vertical annulus, Exp. Therm. Fluid Sci. 50, 154-162.##
Sarafraz, M. M and F. Hormozi (2014). Scale formation and sub-cooled flow boiling heat transfer of CuO–water nanofluid inside the vertical annulus, Exp. Thermal Fluid Sci. 52,
205-214##
Seara, J. F., F. J. Uhia and J. Sieres (2007).
Laboratory practices with the Wilson plot method, Exp. Heat Trans. 20, 123-135.##
You, S. M. , J. H. Kim and K. H. Kim (2003). effect of nanoparticles on critical heat flux of water in pool boiling heat transfer, Appl. Phys. Let.
83(16), 3374–3376.##
Wen, D. and Y. Ding (2005). Experimental investigation into the pool boiling heat transfer of aqueous based alumina nanofluids, J. Nanopart. Res. 7 (2), 2##
]Demixing of a Binary Fluid Mixture in Case of MHD Flow with Heat and Mass Transfer due to a Point Sink22The present problem concerns with the effects of the magnetic field, mass flux diffusion and heat transfer on demixing of a binary mixture of incompressible viscous electrically conducting fluids in steady, laminar boundary layer flow in presence of a point sink at the vertex of a cone. The momentum, energy and concentration equations are reduced to non-linear coupled ordinary differential equations by similarity transformations and are solved numerically by using MATLAB’s built in solver bvp4c. The local skin friction, the Nusselt number and the Sherwood number are tabulated for various values of the parameters. These numerical results have been demonstrated graphically from which it is observed that the effects of various parameters are to separate the components of the binary mixture by collecting the rarer and lighter component near the surface of the cone and throwing the heavier one away from it.661665B. R.SharmaDepartment of Mathematics, Dibrugarh University, Dibrugarh, Assam-786004, IndiaDepartment of Mathematics, Dibrugarh University, Dibrugarh, Assam-786004, Indiapaysb.r.sharma@unspecified.netK.NathDepartment of Mathematics, Dibrugarh University, Dibrugarh, Assam-786004, IndiaDepartment of Mathematics, Dibrugarh University, Dibrugarh, Assam-786004, Indiapayskabitanath56@gmail.comBinary fluid mixture Incompressible Mass flux diffusion Magnetic field Heat transfer.[Ackerberg, R.C. (1965). The viscous incompressible flow inside a cone, J. Fluid Mech. 21, 47-81.##
Eswara, A. T and. B. C. Bommaiah (2004). The effect of variable viscosity on laminar flow due to a point sink, Indian J. Pure Applied Math.
35(6), 811-815.##
Eswara, A. T. , S. Roy and G. Nath (2000).
Unsteady MHD forced flow due to a point sink, Acta Mechanica 145, 159-172.##
Ibrahim, F. S., A. M Elaiw and A. A. Bakr (2008).
Effect of chemical reaction and radiation absorption on the unsteady MHD free
convection flow past a semi infinite vertical
permeable moving plate with heat source and suction, Communication S in Nonlinear Science and Numerical simulation 13, 1056-
1066.##
Mahanti, N. C. and P. Gaur (2009). Effects of varying viscosity and thermal conductivity on steady free convective flow and heat transfer along an isothermal vertical plate in the presence of heat sink. Journal of Applied Fluid Mechanics 2(1), 23-28.##
Muthucumaraswamy, R. (2002). Effects of chemical reaction on a moving vertical isothermal surface with suction, Acta Mechanica 155, 65-70.##
Rosenhead, L. (1963). Laminar Boundary Layer,
Oxford University Press. Oxford.##
Sharma, P. R. and G. Singh (2008). Effects of variable thermal conductivity and heat source / sink on MHD flow near a stagnation point on a linearly stretching sheet, Journal of Applied fluid mechanics 2(1), 13-21.##
Seddeek, M. A. and A. M. Salem (2005). Laminar mixed convection adjacent to vertical continuously stretching sheet with variable viscosity and variable thermal diffusivity, Heat and Mass transfer 41, 1048-1055.##
Sharma, B. R. and R. N. Singh (2008). Barodiffusion and thermal diffusion a binary fluid mixture confined between two parallel discs in presence of a small axial magnetic field, Latin American Applied Research 38,
313-320.##
Sharma, B. R. and. R. N. Singh (2009). Thermal diffusion in a binary fluid mixture confined between two concentric circular cylinders in presence of radial magnetic field, J. Energy Heat Mass Transfer 3, 127-38.##
Sharma, B. R. and R. N. Singh (2010). Separation of species of a binary fluid mixture confined between two concentric rotating circular cylinders in presence of a strong radial magnetic field, Heat Mass Transfer 46, 769-
777.##
Sharma, B. R. and K. Nath. (2012). The effect of magnetic field on separation of binary mixture of viscous fluids by barodiffusion and thermal diffusion near a stagnation point- a numerical study, Int. Jour. Mathematical Archive 3(3),
1118-1124.##
Sharma, B. R. and K. Nath (2012). Effect of axial magnetic field on demixing of a binary fluid mixture due to the rotation of a heated sphere, Int. Journal of Computer Applications (0975-
8887), 53(10), 47-52.##
Sharma, B. R., R. N. Singh and Kr. Gogoi, Rupam (2011). Effect of a Strong Transverse Magnetic Field on Separation of Species of a Binary Fluid Mixture in Generalized Couette Flow, Int. Journal of Applied Engineering Research
6, 2223-2235.##
Sharma, B. R., R. N. Singh, Gogoi, Kr. Rupam and K. Nath. (2012). Separation of species of a binary fluid mixture confined in a channel in presence of a strong transverse magnetic field, Hem. Ind. 66(2), 171-180.##
Sharma, B. R. and R. N. Singh (2004). Soret effect in generalized MHD Couette flow of a binary mixture, Bull Cal Math Soc. 96, 367-374.##
Sharma, B. R. and R. N. Singh (2007). Soret effect due to natural convection between heated vertical plates in a horizontal small magnetic field, Ultra Science 19, 97-106.##
Takhar, H. S., C. D. Surma Devi and G. Nath (1986). MHD flow with heat and mass transfer due to a point sink, Indian J. Pure Applied Math 7(10), 1242-1247.##
]A Study of the Complex Flow Features Behind a Diffracted Shock Wave on a Convex Curved Wall22The complex flow features behind a diffracted shock wave on a convex curved wall is investigated using large scale experimentation complemented by numerical computation. The study aimed at explaining the global flow behavior within the perturbed region behind the diffracted shock wave. Experiments were conducted in a purpose built shock tube that is capable of generating a range of incident shock Mach numbers Mn ≤ 1.6. Analysis of higher Mach number shocks on different wall geometries were carried out using numerical code that has been validated by earlier authors. Many flow features that were only distinct at high Mach numbers are clearly identified at low Mach numbers in the present investigation. The separation point moves upstream at incident shock Mach number Mn = 1.5 but moves downstream at higher Mach numbers and is nearly stationary at Mn = 1.6. At incident shock Mach number 3.0 the movement of the separation point tends to be independent of the wall curvature as the wall radius approaches infinity. The present
investigatio is important in the design of high speed flow devices and in the estimation of flow resistance on
supersonic devices and space vehicles.667672A. O.MuritalaObafemi Awolowo University, Ile-Ife, Osun State, 220005, NigeriaObafemi Awolowo University, Ile-Ife, Osun State, 220005, Nigeriapaysmuriadam@gmail.comB. W.SkewsSchool of Mechanical, Industrial and Aeronautical Engineering, University of The Witwatersrand, PO WITS 2050, South AfricaSchool of Mechanical, Industrial and Aeronautical Engineering, University of The Witwatersrand, PO WITS 2050, South Africapaysberic.skews@wits.ac.zaL.CraigSchool of Mechanical, Industrial and Aeronautical Engineering, University of The Witwatersrand, PO WITS 2050, South AfricaSchool of Mechanical, Industrial and Aeronautical Engineering, University of The Witwatersrand, PO WITS 2050, South Africapayscraig.law@wits.ac.zaCompressible flow Shock wave diffraction Shear layer Flow separation[Anderson, J. (2003). Modern compressible flow with historical perspective. New York: McGrawHill.##
Berezkina, M. K. (2006). Diffraction of a two-shock configuration by a convex cylindrical surface. Technical Physics 51(7), 827-833.##
Craig, R. S. (2005). Disturbances from shock/boundary layer interactions affecting upstream hypersonic flow. 35th AIAA Fluid Dynamics Conference and Exhibit. Toronto, Ontario Canada.##
Delery, J. ( 1985). Shock wave/Turbulent boundary layer interaction and its control. Prog. Aerospace Science 22, 209-280.##
Law, C. (2005). Near-wall features in transient compressible flow on convex walls. In K. R. E.A. G Jagadeesh (Ed.), 25th Internationa lSymposium on Shock Waves. Bangalore, India: Society for Shock Wave Research, IIS.##
Law, C. , A. O. Muritala and B. W. Skews (2014).
Unsteady separation behind a shock wave
diffracting over curved walls Shock Waves, Springer 24(3), 283-294.##
Menter, F. R. (1993). Zonal two equation k-! turbulence models for aerodynamic flows, AIAA 93-2906 ANSYSR® Fluent, Release
6.3, Help System, Theory##
Guide, ANSYS, A. and O. Inc. Muritala (2011).
Separation of compressible flows over convex walls. Ph. D. thesis, University of the
Witwatersrand, South Africa, Faculty of
Engineering and Built Environment.##
Muritala, A. O. (2010). Near wall effects on the global flow behaviour behind a diffracted shock wave. In D. W. S. Kok (Ed.), in Proceeding of Seventh South African Conference on Computational and Applied Mechanics 543 – 548##
Muritala, A. O., C. Law and B. W. Skews (2011).
Shock wave diffraction on convex curved walls. 28th International Symposium on Shock Wave. Manchester, United Kingdom.
Skews, B. W., C. Law, A. O. Muritala and S. Bode (2012). Shear layer behaviour resulting from shock wave diffraction. Experiments in Fluids
52(2), 417 - 424.##
Skews, B. (1967). The shape of diffracting shock wavea. Journal of Fluid Mechanics 29, 297-
304.##
Skews, B. (1967b). The pertubed region behind a diffracting shock wave. Journal of Fluid Mechanics 29, 705-719.##
Skews, B. (2005). Shock wave diffraction on multi- faceted and curved walls. Shock waves 3(14),
137 - 146.##
Skews, B. M. (2010). Large scale shock wave diffraction experiments. 29th International Congress on High-Speed Photography##
]A New Method to Calculate Centrifugal Pump Performance Parameters for Industrial Oils22Pumping of oil instead of water using centrifugal pumps causes rapid increase in the hydraulic losses which results significant reduction in head and efficiency. Therefore, deriving analytical methods to calculate variation of pump performance parameters versus working fluid viscosity is very important. In the present study, a novel method is proposed to calculate the head (H), efficiency ( ) and input power ( in P ) based on the loss analysis for pumps using industrial oils. A computer code is developed based on represented method and the results of this method are compared with experimental results for a centrifugal pump of type KWP KBloc65- 200. The results show good agreement between analytical and experimental methods. Finally, using such computer code, diagrams of head, efficiency and input power versus working fluid viscosity are plotted.The results show an interesting point known as “sudden rising head” which is observed experimentally and
numerically in literatures.673681M. H.ShojaeefardSchool of Mechanical Engineering, Iran University of Science and Technology, Tehran,16844, Iran.School of Mechanical Engineering, Iran University of Science and Technology, Tehran,16844, Iran.paysmhshf@iust.ac.irB.Salimian RiziSchool of Mechanical Engineering, Iran University of Science and Technology, Tehran,16844, Iran.School of Mechanical Engineering, Iran University of Science and Technology, Tehran,16844, Iran.paysbehzad7038@gmail.comA.KhalkhaliSchool of Automotive Engineering, Iran University of Science and Technology, Tehran,16844, Iran.School of Automotive Engineering, Iran University of Science and Technology, Tehran,16844, Iran.paysab_khalkhali@iust.ac.irM.TahaniSchool of New Sciences and Technologies, University of Tehran, 1439955941, IranSchool of New Sciences and Technologies, University of Tehran, 1439955941, Iranpaystahani@iust.ac.irCentrifugal pump Loss analysis Analytical method Industrial oil[Gulich, JF. (2003). Disk friction losses of closed turbomachine impellers. Forsch Ingenieurwes,
68,87-95.##
Gulich, J. F. (1999). Pumping Highly Viscous Fluids
with Centrifugal Pumps-Part 1. World pumps. Gulich, J. F. (1999). Pumping Highly Viscous Fluids with Centrifugal Pumps-Part 2. World pumps.##
Gulich, J. F. (2003). Effect of Reynolds number and surface roughness on the efficiency of centrifugal pumps. ASME Journal of Fluid Engineering 125(4),670-679.##
Gulich, J. F. (2008). Centrifugal pumps. Springer- Verlag, Berlin Heidelberg, ISBN 978(3),540-
73694-3##
Ladouani A. and A. Nemdili (2009). Influence of Reynolds number on net positive suction head of centrifugal pumps in relation to disk friction losses”, Forsch Ingenieurwes 73,173-182.##
Li, W. G. (1999). Effects of viscosity of fluids on centrifugal pump performance and flow pattern in the impeller. International Journal of Heat and Fluid Flow 21,207-212.##
Li, W. G. (2000). The Sudden-Rising Head Effect in
Centrifugal Oil Pumps. World Pumps.##
Li, W. G. (2002). Experimental investigations into the performance of a commercial centrifugal oil pump. World Pumps 26-8.##
Li, W. G. (2004). A Method for Analyzing the Performance of Centrifugal Oil Pumps. ASME Journal of Fluid Engineering 126,482-485.##
Li, W. G. (2008). Performance computations of centrifugal pump handling viscous oils. Dra Irr Mach.##
Li, W. G. (2010). Blade Exit Angle Effects on Performance of a Standard Industrial Centrifugal Oil Pump. Journa l of Applied Fluid Mechanics 4:105-119.##
Li, W. G., Z. M. Hu (1997). An Experimental Study on Performance of Centrifugal Oil Pump. Fluids Mach 25(2), 3-7.##
Nemdili, A. and D. H. Hellmann (2007).
Investigations on fluid friction of rotational disks with and without modified outlet sections in real centrifugal pump casings. Forsch Ingenieurwes 71,59-67.##
Shojaeefard, M. H., M. B. Ehghaghi and F. A.
Boyaghchi (2006). Experimental study and three dimensional numerical flow simulation in a centrifugal pump when handling viscous fluids. IUST Int J Eng Sc 17(3-4), 53-60.##
Shojaeefard, M. H. and F. A. Boyaghchi (2007).
Studies on the influence of various blade outlet angles in a centrifugal pump when handling
viscous fluids. American Journal of Applied
Science 4(9),718-724##
Shojaeefard, M. H, M. Tahani, M. B. Ehghaghi, M.
A. Fallahian and M. Beglari (2012). Numerical study of the effects of some geometric characteristics of a centrifugal pump impeller that pumps a viscous fluid. Computers&Fluids
60,61-70.##
]Three-Dimensional Design of Axial Flow Compressor Blades Using the Ball-Spine Algorithm22Recently a new inverse design algorithm has been developed for the design of ducts, called ball-spine (BS). In the BS algorithm, the duct walls are considered as a set of virtual balls that can freely move along some specified directions, called ‘spines’. Initial geometry is guessed and the flow field is analyzed by a flow solver. Comparing the computed pressure distribution (CPD) with the target pressure distribution (TPD), new balls positions for the modified geometry are determined. This procedure is repeated until the target pressure is achieved. In the present work, the ball-spine algorithm is applied to three-dimensional design of axial compressor blades. The design procedure is tested on blades based on NACA65-410 and NACA65-610 profiles and the accuracy of the method is shown to be very good. As an application, the pressure distribution of the blade with NACA65-610 profiles is modified and the pressure gradient in the aft part of the blade is decreased and selected as target pressure distribution. The corresponding geometry which satisfies the target
pressure is determined using the BS design algorithm.683691A.MadadiDepartment of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, P. Code 15875-4413Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, P. Code 15875-4413paysali.madadi@gmail.comM. J.KermaniDepartment of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, P. Code 15875-4413Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, P. Code 15875-4413paysmkermani@aut.ac.irM.NiliDepartment of Mechanical Engineering, Isfahan University of Technology, Isfahan, IranDepartment of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iranpaysm.nili@cc.iut.ac.irBall-Spine algorithm Inverse design Compressor blade Target pressure distribution.[Garabedian, P. and G. McFadden (1982). Design of supercritical swept wings. AIAA Journal. 30(3).##
Kermani, M. J. (2001). Development and Assessment of Upwind Schemes with Application to Inviscid and Viscous Flows on Structured Meshes. Ph.D. Thesis, Department of Mechanical & Aerospace Engineering, Carleton University, Canada.##
Kermani, M. J and E. G. Plett (2001). Modified Entropy Correction Formula for the Roe Scheme. AIAA 2001–0083.##
Lamm, P. K. (1993). Inverse Problems and Ill- Posedness. Inverse Problems in Engineering: Theory and Practice, ASME.##
Li, H. D., L. HeY., S. Li and R. G. Wells (2006).
Blading Aerodynamics Design Optimization with Mechanical and Aeromechanical Constraints. Proceedings of ASME Turbo Expo, Barcelona, Spain, GT2006-90503.##
Madadi, A., M. J. Kermani and M. Nili- Ahmadabadi (2011). Application of an Inverse Design Method to Meet a Target Pressure in Axial-Flow Compressors. Proceedings of ASME Turbo Expo, Vancouver, Canada, GT2011-46091.##
Nili-Ahmadabadi, M., M. Durali, A. Hajilouy and F. Ghadak (2009). Inverse Design of 2D Subsonic Ducts Using Flexible String Algorithm. Inverse Problems in Science and Engineering 17(8),1037-1057.##
Nili-Ahmadabadi, M., A. Hajilouy, M. Durali and F. Ghadak (2010). Duct Design in Subsonic and Supersonic Flow Regimes with and without Normal Shock Waves Using Flexible String Algorithm. Scientia Iranica Journal 17(3),179-
193.##
Nili-Ahmadabadi, M., A., F. HajilouyGhadak and M. Durali (2010). A Novel 2-D Incompressible Viscous Inverse Design Method for Internal Flows Using Flexible String Algorithm. Journal of Fluids Engineering, ASME,.
132/031401-1-9.##
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27484.##
]MHD Mixed Convection Heat Transfer in a Vertical Channel with Temperature-Dependent Transport Properties22An analysis is carried out to study the effects of temperature-dependent transport properties on the fully developed free and forced MHD convection flow in a vertical channel. In this model, viscous and Ohmic dissipation terms are also included. The governing nonlinear equations (in non-dimensional form) are solved numerically by a second order finite difference scheme. A parametric study is performed in order to illustrate the interactive influences of the model parameters; namely, the magnetic parameter, the variable viscosity parameter, the mixed convection parameter, the variable thermal conductivity parameter, the Brinkmann number and the Eckert number. The velocity field, the temperature field, the skin friction and the Nusselt number are evaluated for several sets of values of these parameters. For some special cases, the obtained
numerical results are compared with the available results in the literature: Good agreement is found. Of all the parameters, the variable thermo-physical transport property has the strongest effect on the drag, heat transfer characteristics, the stream-wise velocity, and the temperature field.693701K. V.PrasadDepartment of Mathematics, Vijayanagra Sri Krishnadevaraya University, Vinayaka nagar, Bellary - 583 104, Karnataka, IndiaDepartment of Mathematics, Vijayanagra Sri Krishnadevaraya University, Vinayaka nagar, Bellary - 583 104, Karnataka, Indiapaysprasadkv2000@yahoo.co.inH.VaidyaResearch Scholar, Department of Mathematics, Vijayanagra Sri Krishnadevaraya University, Vinayaka Nagar, Bellary - 583 104, Karnataka, IndiaResearch Scholar, Department of Mathematics, Vijayanagra Sri Krishnadevaraya University, Vinayaka Nagar, Bellary - 583 104, Karnataka, Indiapayshanumeshvaidya@gmail.comK.VajraveluDepartment of Mathematics, University of Central Florida, Orlando, Florida 32816, USADepartment of Mathematics, University of Central Florida, Orlando, Florida 32816, USApayskuppalapalle.vajravelu@ucf.eduVariable fluid properties Mixed convection Viscous dissipation Keller-box method.[Aung, W and G. Worku (1986). Theory of fully developed combined convection including flow reversal, ASME J. Heat Trans. 108, 485-
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]Ammonia Decomposition for Hydrogen Production in Catalytic Microchannels with Slip/Jump Effects22The rarefaction effects on the catalytic decomposition of NH3 in ruthenium–coated planar microchannels is numerically simulated in the Knudsen number range 0.015-0.03. A colocated finite–volume method is used to solve the governing equations. A concentration jump model derived from the kinetic theory of gases is employed to account for the concentration discontinuity at the reactive walls. A detailed surface reaction mechanism for ammonia decomposition on ruthenium along with a multi-component species diffusion model are used to study the effects of concentration jump coupled with velocity slip and temperature jump on the walls. The velocity-slip, temperature-jump and concentration-jump boundary conditions have miscellaneous effects on flow, temperature and species concentration fields. The results suggest that the velocity-slip boundary condition only slightly influences the species distribution at the edge of the Knudsen layer as well as inside the channel, while the temperature-jump boundary condition affects the heat and mass transfer characteristics the most. The concentration-jump effect, on the other hand, can counter balance the temperature-jump effects in some cases.703712A.Qazi ZadeDepartment of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, CanadaDepartment of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canadapaysaqazizad@uwaterloo.caM.RenksizbulutDepartment of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, CanadaDepartment of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canadapaysmetin@uwaterloo.caJ.FriedmanDepartment of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, M5B 2K3, CanadaDepartment of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, M5B 2K3, Canadapaysjfriedman@ryerson.caAmmonia decomposition Heterogeneous reactions Velocity slip Temperature jump Concentration jump Microchannel[Ahn, J., C. Eastwood, L. Sitzki and P. D. Ronney (2005). Gas- phase and catalytic combustion in heat-recirculating burners. Proc. Combust. Inst. 30, 2463-2472.##
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Heat Mass Transfer 44(22), 4225- 4234.##]Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor22In this paper, a numerical study on flow characteristics in configurations of sudden expansion with central restriction and fence viewed as annular flow dump combustor has been carried out for Reynolds number (Re) ranging from 50 to 200, percentage of central restriction (CR) from 10% to 40% and aspect ratio (AR) from 2 to 6 with a fixed fence subtended angle (FSA) of 10 degree and with a fixed distance of fence from throat respectively. The effect of each variable on streamline contour and velocity profile has been studied in detail. Results have been compared with the configuration of sudden expansion with central restriction only. From the study it is concluded that the configuration of sudden expansion with central restriction and fence with higher flow Reynolds number, higher central restriction and higher aspect ratio offers more benefit in terms of the mixing possibility compared to the case of sudden expansion with central restriction only.713725T.DasDepartment of Mechanical Engineering, Kalyani Government Engineering College, Kalyani, Nadia - 741235, West Bengal, IndiaDepartment of Mechanical Engineering, Kalyani Government Engineering College, Kalyani, Nadia - 741235, West Bengal, Indiapaystridibesh.me@gmail.comS.ChakrabartiDepartment of Mechanical Engineering, Indian Institute of Engineering Science and Technology (Formerly, Bengal Engineering and Science University), Shibpur, Howrah-711103, West Bengal, IndiaDepartment of Mechanical Engineering, Indian Institute of Engineering Science and Technology (Formerly, Bengal Engineering and Science University), Shibpur, Howrah-711103, West Bengal, Indiapayssomnathbec@rediffmail.comSudden expansion Central restriction Recirculating bubble Streamline contour[Chakrabarti, S., S. Ray and A. Sarkar (2008).
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]Numerical Study of Forced Air Cooling of a Heated Porous Foam Pyramid Array22The current study employs CFD to study the forced air cooling of a pyramid shaped porous foam absorber. Herein, a three by three (33) array of porous foam absorbers heated with an external heat flux is modeled using the differential equations governing heat and fluid flow through porous media based on the Brinkman- Darcy flow equations and an effective thermal conductivity to account for the porous medium. The numerical simulations are carried out using the COMSOL commercial Computational Fluid Dynamics (CFD) Finite Element based software package. The results of this verification exercise were within 18% of the prior numerical results and within 14% of the archived measured results. Typical results for the velocity and temperature profiles within the porous foam absorbers are shown. A comparison of Nusselt number between our CFD simulations and the heat transfer theory is plotted, showing agreement on the order of 11%. A parametric study involving heat flux, cooling air inlet velocity, porous foam porosity, and porous foam permeability showed that there is a relationship between porosity and the temperature distribution within the porous media. The primary finding of our study is that the more porous the foam absorber media is, the more dependent the effective thermal conductivity is on the thermal conductivity of the fluid used for cooling. If the fluid is air, which has a very low thermal conductivity, the effective thermal conductivity is decreased as the porosity increases, thus diminishing removal of heat from the foam array via the cooling air stream. Based on the parametric study, the best case operating conditions which may allow the pyramidal foam absorber to stay within the max allowable temperature are as follows: porosity = 0.472, inlet air cooling velocity = 50 m/s.727734K.AndersonCalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USACalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USApayskranderson1@csupomona.eduM.ShafahiCalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USACalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USApaysmaryam.shafahi@email.ucr.eduA.GuiterrezCalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USACalifornia State Polytechnic University at Pomona, Mechanical Engineering, Non-linear FEA/CFD Multiphysics Simulation Laboratory, Pomona, CA, 91768, USApaysalfredo.gutierrez321@gmail.comPorous media Computational fluid dynamics Forced convection Heat transfer[Bejan, A. (1994). Convection heat transfer. New
York, NY: Wiley-Interscience.##
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power injection. Proceedings from the 37th
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]Mixed Convection Flow of Casson Nanofluid over a Stretching Sheet with Convectively Heated Chemical Reaction and Heat Source/Sink22The present study addresses the mixed convection flow of non-Newtonian nanofluid over a stretching surface in presence of thermal radiation, heat source/sink and first order chemical reaction. Casson fluid model is adopted in the present study. Magnetic field contribution is incorporated in the momentum equation whereas the aspects of nanoparticles are considered in the energy and concentration equations. Convective boundary conditions for both heat and mass transfer are utilized. Similarity transformations are employed to reduce the partial differential equations into ordinary differential equations. Series solutions of the resulting problem are obtained. Impacts of all the physical parameters on the velocity, temperature and concentration fields are analyzed graphically. Numerical values of different involved parameters for local skin friction coefficient, local Nusselt and Sherwood numbers are obtained and discussed.803813T.HayatDepartment of Mathematics, Quaid-i-Azam University 45320 Islamabad 44000, PakistanDepartment of Mathematics, Quaid-i-Azam University 45320 Islamabad 44000, Pakistanpayspensy_t@yahoo.comM.Bilal AshrafDepartment of Mathematics, Comsats Institute of Information Technology, Wah Cantt, PakistanDepartment of Mathematics, Comsats Institute of Information Technology, Wah Cantt, Pakistanpaysbilalashraf_qau@yahoo.comS. A.ShehzadDepartment of Mathematics, Comsats Institute of Information Technology, Sahiwal 57000, PakistanDepartment of Mathematics, Comsats Institute of Information Technology, Sahiwal 57000, Pakistanpaysali_qau70@yahoo.comA.AlsaediNonlinear Analysis and Applied Mathematics (NAAM) Research Group, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi ArabiaNonlinear Analysis and Applied Mathematics (NAAM) Research Group, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabiapaysaalsaedi@hotmail.comCasson nanofluid Mixed convection flow Thermal radiation Magnetic field Chemical reaction Heat source/sink.[Abbasbandy, S., M. S. Hashemi and I. Hashim (2013). On convergence of homotopy analysis method and its application to fractional integro-differential equations. Quaestiones Mathematicae 36(1), 93-105.##
Alsaedi, A., M. Awais and T. Hayat (2012). Effects of heat generation/absorption on stagnation point flow of nanofluid over a surface with convective boundary conditions. Communications in Nonlinear Science and Numerical Simulation 17(11), 4210-4223.##
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240-250.##
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Casson fluid flow in a pipe filled with a homogeneous porous medium. International
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Alhothuali (2012a). Mixed convection stagnation point flow of Casson fluid with
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Effects of radiation and magnetic field on the mixed convection stagnation-point flow over a vertical stretching sheet in a porous medium. International Journal of Heat and Mass Transfer 53(1-3), 466-474.##
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Mukhophadhyay, S. and K. Vajravelu (2013b).
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Casson fluid flow over an unsteady permeable stretching surface. Journal of Hydrodynamics
25(4), 591-598.##
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Unsteady boundary layer flow of nanofuid past an impulsively stretching sheet. Journal of
Mechanics 29(3), 423-432.##
Rashidi, M. M., N. F. Mehr, A. Hosseini, O. A. Bég and T. K. Hung (2014a). Homotopy simulation of nanofluid dynamics from a non-linearly stretching isothermal permeable sheet with transpiration. Meccanica 49(2), 469-482.##
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Rashidi, M. M., O. A. Bég, N. F. Mehr, A. Hosseini and R. S. R. Gorla (2012a). Homotopy simulation of axisymmetric laminar mixed convection nanofluid boundary layer over a vertical cylinder. Theoretical and Applied Mechanics 39(4), 365-390.##
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Sheikholeslami, M., M. G. Bandpy and G.
Domairry (2013b). Free convection of nanofluid filled enclosure using lattice Boltzmann method (LBM). Applied Mathematics and Mechanics 34(7), 833-846.##
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Turkyilmazoglu, M. (2013). Unsteady convection flow of some nanofluids past a moving vertical flat plate with heat transfer. Journal of Heat Transfer 136(3), 031704.##
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]A Weakly Non Linear Stability Analysis of Heat Transport in Anisotropic Porous Cavity Under Time PeriodicTemperature Modulation22In this paper, we have analyzed the effect of time periodic temperature modulation on convective stability in anisotropic porous cavity. The cavity is heated from below and cooled from above. A weakly non-linear stability analysis is done to find Nusselt number governing the heat transport. The infinitely small disturbances are expanded in terms of power series of amplitude of modulation. Analytically the nonautonomous Ginzburg- landau amplitude equation is obtained for the stationary mode of convection. The effects of various parameters like Vadasz number, mechanical and thermal anisotropic parameters, amplitude of oscillations, frequency of modulation and aspect ratio of the cavity on heat transport is studied and plotted
graphically. It is observed that the heat transport can also be controlled by suitably adjusting the external and internal parameters of the system.815824A.MishraGeneral Department, IDS, Nirma University , Ahmedabad, Gujrat- 382481, IndiaGeneral Department, IDS, Nirma University , Ahmedabad, Gujrat- 382481, Indiapaysamitmishra_pi@yahoo.co.inM.KumarDepartment of Mathematics, MNNIT, Allahabad, U. P.- 211004, IndiaDepartment of Mathematics, MNNIT, Allahabad, U. P.- 211004, Indiapaysmukeshkumar12@rediffmail.comTemperature modulation Anisotropic porous cavity Ginzburg- landau amplitude equation.[Bhadauria, B. S. and A. Khan (2011). Rotating Brinkman Lapwood convection with modulation, Transport in Porous Media 88,
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]On the Dynamic Behavior of a Liquid Droplet Impacting upon a Wall Having Obstacles22In this paper, the effects of a step edge and a stationary droplet on the dynamic behavior of a droplet impacting upon a wall are experimentally studied. The main parameters were the distance from the step edge to the center of the impacting droplet and the center-to-center distance between the stationary and impacting droplets. Photographic images showed the coalescence dynamics, shape evolution and contact line movement of the impacting droplet. The spread length is presented for the step edge and two coalescing droplets. The droplets exhibited much different dynamic behavior depending on the location of the step edge. The momentum of the impacting droplet was better transferred to the stationary droplet as the center-to-center distance between the two droplets was reduced, resulting in more spreading of the coalescing droplet.825833B.KangDeparment of Mechanical Engineering, Chonnam National University., 77 Yongbong-ro, Buk-gu, Gwangju, KoreaDeparment of Mechanical Engineering, Chonnam National University., 77 Yongbong-ro, Buk-gu, Gwangju, Koreapaysbskang@jnu.ac.krCoalescence Impacting droplet Stationary droplet Step edge.[Andrieu, C., D. Beysens, V. Nikolayev and Y.
Pomeau (2002). Coalescence of sessile drops.
Journal of Fluid Mechanics 453, 427-438.##
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Multiphase flows with droplets and Particles. CRC Press, Boca Raton.##
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Energy and Combustion Science 36, 554-580.##
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]Onset of the Mutual Thermal Effects of Solid Body and Nanofluid Flow over a Flat Plate Theoretical Study22The falling and settling of solid particles in gases and liquids is a natural phenomenon happens in many industrial processes. This phenomenon has altered pure forced convection to a combination of heat conduction and heat convection in a flow over a plate. In this paper, the coupling of conduction (inside the plate) and forced convection of a non-homogeneous nanofluid flow (over a flat plate) is investigated, which is classified in conjugate heat transfer problems. Two-component four-equation non-homogeneous equilibrium model for convective transport in nanofluids (mixture of water with particles<100nm) has been applied that incorporates the effects of the nanoparticles migration due to the thermophoresis and Brownian motion forces. Employing similarity variables, we have transformed the basic non-dimensional partial differential equations to ordinary differential ones and then solved numerically. Moreover, variation of the heat transfer and concentration rates with thermal resistance of the plate is studied in detail. Setting the lowest dependency of heat transfer rate to the thermal resistance of the plate as a goal, we have shown that for two nanofluids with similar heat transfer characteristics, the one with higher Brownian motion (lower nanoparticle diameter) is desired.835843A.MalvandiYoung Researchers and Elit Club. Qazvin Branch, Islamic Azad University, IranYoung Researchers and Elit Club. Qazvin Branch, Islamic Azad University, Iranpaysamirmalvandi@hotmail.comF.HedayatiDepartment of Mechanical Engineering, Islamic Azad University, Sari Branch, Sari, IranDepartment of Mechanical Engineering, Islamic Azad University, Sari Branch, Sari, Iranpayshedayati.faraz@live.comD. D.GanjiDepartment of Mechanical Engineering, Islamic Azad University, Sari Branch, Sari, IranDepartment of Mechanical Engineering, Islamic Azad University, Sari Branch, Sari, Iranpaysddg_davood@yahoo.comNanofluid Flat plate Conjugate heat transfer Thermophoresis Brownian motion.[Alinia, M., D. D. Ganji and M. Gorji-Bandpy (2011).
Numerical study of mixed convection in an inclined two sided lid driven cavity filled with nanofluid using two-phase mixture model. International Communications in Heat and Mass Transfer 38(10), 1428-1435##
Ashorynejad, H. R., M. Sheikholeslami, I. Pop and D.
D. Ganji (2013) Nanofluid flow and heat transfer due to a stretching cylinder in the presence of magnetic field. Heat and Mass Transfer 49 (3),
427-436.##
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Domairry and F. Noori (2011). An analytical solution for boundary layer flow of a nanofluid past a stretching sheet. International Journal of Thermal Sciences 50(11), 2256-2263.##
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Malvandi, A. and D. D. Ganji (2014). Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field. International Journal of Thermal Sciences 84,
196-206.##
Malvandi, A. and D. D. Ganji (2014). Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field. Journal of Magnetism and Magnetic Materials
362, 172-179.##
Malvandi, A. and D. D. Ganji (2014). Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field. Powder Technology 263, 37-44.##
Malvandi, A. and D. D. Ganji (2014). Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field.
International Journal of Thermal Sciences 84(4),
196-206.##
Malvandi, A., D. D. Ganji, F. Hedayati and E.
Yousefi Rad (2013). An analytical study on entropy generation of nanofluids over a flat plate. Alexandria Engineering Journal 52(4), 595-604.##
Malvandi, A., F. Hedayati and G. Domairry (2013).
Stagnation point flow of a nanofluid toward an exponentially stretching sheet with nonuniform heat generation/absorption. Journal of Thermodynamics.
Malvandi, A., F. Hedayati and D. D. Ganji (2013).
Thermodynamic optimization of fluid flow over an isothermal moving plate. Alexandria Engineering Journal 52(3), 277-283.##
Malvandi, A., F. Hedayati and D. D. Ganji (2014).
Slip effects on unsteady stagnation point flow of a nanofluid over a stretching sheet. Powder Technology 253(0) 377-384.##
Malvandi, A., F. Hedayati and M. R. H. Nobari (2014). An HAM Analysis of Stagnation-Point Flow of a Nanofluid over a Porous Stretching Sheet with Heat Generation. Journal of Applied Fluid Mechanics 7(1) 135-145.##
Malvandi, A., F. Hedayati and M. R. H. Nobari (2014). An Analytical Study on Boundary Layer Flow and Heat Transfer of Nanofluid Induced by a Non-Linearly Stretching Sheet. Journal of Applied Fluid Mechanics 7(2), 375-384.##
Malvandi, A., F. Hedayeti, D. Ganji and Y.
Rostamiyan (2013). Unsteady boundary-layer flow of nanofluid past a permeable stretching/shrinking sheet with convective heat transfer. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228(7), 1175-
1184.##
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Ganji (2014). Modified Buongiorno’s model for fully developed mixed convection flow of nanofluids in a vertical annular pipe. Computers
& Fluids 89(0) 124-132.##
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Sheikholeslami, M., M. Gorji-Bandpy, S. M. Seyyedi, D. D. Ganji, H. B. Rokni and S. Soleimani (2013). Application of LBM in simulation of natural convection in a nanofluid filled square cavity with curve boundaries. Powder Technology 247(0), 87-94.##
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]Unsteady Free Convection Flow past a Vertical Plate with Heat and Mass Fluxes in the Presence of Thermal Radiation22The problem of unsteady free convection flow past an infinite vertical plate with heat and mass fluxes in the presence of thermal radiation is studied. The dimensionless coupled linear partial differential equations governing the flow are solved by employing the Laplace transform technique. Exact solutions have been obtained for the fluid velocity, temperature and mass concentration for the cases of both uniform heat flux (UHF) and uniform wall temperature (UWT). The numerical results for the fluid velocity, temperature and mass concentration are presented graphically for various pertinent flow parameters and discussed in detail.845854S.DasDepartment of Mathematics, University of Gour Banga, Malda 732 103, IndiaDepartment of Mathematics, University of Gour Banga, Malda 732 103, Indiapayssdas@yahoo.comR. N.JanaDepartment of Applied Mathematics, Vidyasagar University, Midnapore 721 102, IndiaDepartment of Applied Mathematics, Vidyasagar University, Midnapore 721 102, Indiapaysjana261171@yahoo.co.inA. J.ChamkhaMechanical Engineering Department, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Saudi ArabiaMechanical Engineering Department, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Saudi Arabiapaysachamkha@yahoo.comFree convection Heat and mass fluxes Vertical plate Thermal radiation UHF and UWT.[Ahmed, N. and H. K.Sarmah (2009). Thermal radiation effect on a transient MHD flow with mass transfer past an impulsively started infinite vertical plate. Int. J. Appl. Math. Mech.
5(5), 87- 98.##
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121.##
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]Investigating Flat Plate Drag Reduction Using Taguchi Robust Design22Research has shown when a rectangular cylinder is located near a flat plate, the flat plate skin friction coefficient changes as a function of the rectangular aspect ratio, gap height between the rectangular and flat plate, distance of rectangular from the flat plate leading edge, and speed of free stream. However, there is no comprehensive experimental study on the comparison of the results of the flat plate skin friction coefficient for all the interactions between effective variables in the presence and absence of the obstacle. On the other hand, testing all possible combinations of effective variables will not be reasonable. In this paper, maximum and minimum ratios of the flat plate skin friction coefficients with and without the rectangular cylinder were determined using robust Taguchi design. Design of experiments method was applied for decreasing the number of experiments without losing the required information in the first step. Then, experimentation was
done in a wind tunnel, the maximum speed of which was 13 m/s. Finally, the flat plate skin friction coefficient was optimized using Taguchi method and Minitab software. Results showed that presence of the rectangular cylinder near the flat plate decreased the average skin friction coefficient of the flat plate for all the possible combinations of the effective variables. Additionally, maximum value of the flat plate skin friction reduction was about 40%.855862G.GhassabiDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iranpaysghodrat.ghassabi@buqaen.ac.irM.KahromDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iranpaysmkahrom@ferdowsi.um.ac.irSkin friction coefficient Drag reduction Design of experiments Taguchi method Rectangular cylinder.[Akbarzadeh, A., S. Kouravand and B. M. Imani (2013). Robust Design of a Bimetallic Micro Thermal Sensor Using Taguchi Method. Journal of Optimization Theory and Applications 157(1),188-198.##
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]Applications of Shallow Water SPH Model in Mountainous Rivers22In this paper, the Shallow Water Equations (SWEs) are solved by the Smoothed Particle Hydrodynamics (SPH) approach. The proposed SWE-SPH model employs a novel prediction/correction two-step solution algorithm to satisfy the equation of continuity. The concept of buffer layer is used to generate the fluid particles at the inflow boundary. The model is first applied to several benchmark water flow applications involving relatively large bed slope that is typical of the mountainous regions. The numerical SWE-SPH computations realistically disclosed the fundamental flow patterns. Coupled with a sediment morph-dynamic
model, the SWE-SPH is then further applied to the movement of sediment bed load in an L-shape channel and a river confluence, which demonstrated its robust capacity to simulate the natural rivers.863870R.ChenState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, Chinapayschenridong1984@163.comS.ShaoDepartment of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK (Visiting University, Beijing)Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK (Visiting University, Beijing)payssongdongshao@hotmail.comX.LiuState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, Chinapaysscucrs@163.comX.ZhouState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, Chinapaysxiaoquan_zhou@126.comSWE SPH Two-step solution Prediction/correction Sediment transport Buffer layer Mountainous region.[Biron, P. M., A. Richer, A. D. Kirkbride, A. G. Roy and S. Han (2002). Spatial patterns of water surface topography at a river confluence. Earth Surface Processes and Landforms 27, 913–928.##
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]Mathematical Analysis of Single and Two-Phase Flow of Blood in Narrow Arteries with Multiple Contrictions22The pulsatile flow of blood in narrow arteries with multiple-stenoses under body acceleration is analyzed mathematically, treating blood as (i) single-phase Herschel-Bulkley fluid model and (ii) two-phase Herschel- Bulkley fluid model. The expressions for various flow quantities obtained by Sankar and Ismail (2010) for single-phase Herschel-Bulkley fluid model and Sankar (2010c) for two-phase Herschel-Bulkley fluid model are used to compute the data for comparing these fluid models in a new flow geometry. It is noted that the plug core radius, wall shear stress and longitudinal impedance to flow are marginally lower for two-phase HB fluid model than those of the single-phase H-B fluid model. It is found that the velocity decreases significantly with the increase yield stress of the fluid and the reverse behavior is noticed for longitudinal
impedance to flow. It is also noticed that the velocity distribution and flow rate are higher for two-phase Herschel-Bulkley fluid model than those of the single-phase Herschel-Bulkley fluid model. It is also recorded that the estimates of the mean velocity increase with the increase of the body acceleration and this behavior is reversed when the stenosis depth increases.871883D. S.SankarEngineering Mathematics Unit, Faculty of Engineering, Institut Teknologi Brunei, Jalan Tungku Link, Gadong BE1410, Brunei DarussalamEngineering Mathematics Unit, Faculty of Engineering, Institut Teknologi Brunei, Jalan Tungku Link, Gadong BE1410, Brunei Darussalampaysdssankar100@gmail.comA. K.NagarDepartment of Mathematics and Computer Science, Centre for Applicable Mathematics and Systems Science, Liverpool Hope University, Hope Park, Liverpool L16 9JD, UKDepartment of Mathematics and Computer Science, Centre for Applicable Mathematics and Systems Science, Liverpool Hope University, Hope Park, Liverpool L16 9JD, UKpaysnagara@hope.ac.ukA. V.KumarDepartment of Mathematics, National Institute of Technology, Yupia- 791112, Arunachal Pradesh, IndiaDepartment of Mathematics, National Institute of Technology, Yupia- 791112, Arunachal Pradesh, Indiapaysvanav_a@yahoo.co.inBlood flow Single-phase fluid flow Two-phase fluid flow Body acceleration Multiplestenoses Comparative study.[Ang, K.C. and J. Mazumdar (1995). Mathematical modeling of triple arterial stenosis, Australian. Journal of Physical Engineering Science Medicine 18, 89 – 94.##
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Experimental analysis of the influence of stenotic geometry on steady flow. Biorheology
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Liu, G. T., X. J. Wang, B. Q. Ai and L. G. Liu (2004). Numerical study of pulsating flow through a tapered artery with stenosis. Chinese Journal of Physics 42, 401 – 409.##
Mandal, P. K., S. Chakravarthy, A. Mandal and N.
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Amin (2008). Unsteady response of blood flow through a couple of irregular arterial constrictions to body accelerations. Journal of Mechanics and Medical Biology 8, 395 – 420.##
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Sankar, D. S., J. Goh and A. I. M. Ismail (2010).
FDM analysis for blood flow through stenosed tapered arteries. Boundary Value Problems,
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]Experimental Study of Heat Transfer Enhancement in a Heated Tube Caused by Wire-Coil and Rings22This study investigates heat transfer characteristics and the pressure drop of a horizontal double pipe heat exchanger with wire coil inserts. The amplification of convection heat transfer coefficient in the heat exchanger reduces the weight, size and cost of heat exchanger. One way of augmenting the heat transfer is to disturb the boundary layer. When an object is placed in a boundary layer, it affects the flow structure and alters the velocity and thermal profiles. The change is affected by the formation of jets and wakes in the boundary layer as it alters modifies transfer and friction coefficients on the wall. This paper studies the characteristics of the heat transfer and the pressure drop of a double pipe horizontal tube heat exchanger with an inserted wire coil and rings. Wire coil acts as a swirl flow, which increases turbulence and roughness
whereas rings increase heat transfer as a promoter of turbulence and roughness. The experimental data sets were extracted from wire coils and rings tested within a geometrical range with a pitch of (P/D=1, 2, 4) and wire diameter of (d/D=0.05, 0.07, 0.11). For wire coil with d/D=0.11, P/D =1 and Reynolds number of 10000, the overall enhancement efficiency amounted to 128%. 885892S.VahidifarDepartment of Mechanical Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad , Khorasan Razavi, P.O. Box No. 91775- 1111, IRAN.Department of Mechanical Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad , Khorasan Razavi, P.O. Box No. 91775- 1111, IRAN.payss_vahidifar@yahoo.comM.KahromDepartment of Mechanical Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad , Khorasan Razavi, P.O. Box No. 91775- 1111, IRAN.Department of Mechanical Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad , Khorasan Razavi, P.O. Box No. 91775- 1111, IRAN.paysmohsen.kahrom@yahoo.co.ukEnhancement of boundary layer Ring insert Convection heat transfer coefficient Heat exchanger Wire coil insert.[Akansu, S. O. (2006). Heat transfers and pressure drops for porous-ring tabulators in a circular pipe. International journal Applied Energy 83,
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]Bubble Dynamics for Nucleate Pool Boiling of Water, Ethanol and Methanol Pure Liquids under the Atmospheric Pressure22Bubble dynamics is the most important sub-phenomenon, which basically affects the nucleate pool boiling heat transfer coefficient. In this research, bubble departure diameter values were experimentally measured for heat fluxes up to 110 kW.m-2. Experiments were carried out for pool boiling of pure liquids, including water, ethanol and methanol on a horizontal smoothed cylinder, at atmospheric pressure. For ethanol and methanol, rigid spherical bubbles with small contact area were observed. The spherical shapes seem to be because of small diameters.For all test fluids, experimental results show that bubble diameter increases with increasing heat flux. Most predictions have a similar trend for increasing bubble diameter versus increasing heat flux. Also, the existing well-known and most common used correlations are comparatively discussedwith the present experimental data. Finally, a new model for the prediction of vapor bubble departure diameter, based on Buckingham theory, in nucleate boiling is proposed, which predicts the experimental data with a
satisfactory accuracy.893898S.HamzekhaniDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, IranDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iranpayssamanehamzekhani@gmail.comM.Maniavi FalahiehDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, IranDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iranpaysmmaniavifalahieh@gmail.comM. R.KamalizadehDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, IranDepartment of Chemical Engineering, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iranpaysmkamali11@yahoo.comM.SalmaninejadApplied Science and Technology University, Neyriz, IranApplied Science and Technology University, Neyriz, Iranpayssalmaninejad@yahoo.comPool boiling Bubble departure Pure liquids Experimental data Heat transfer.[Alavi Fazel, S. A. and S.B. Shafaee (2010). Bubble dynamics for nucleate pool boiling of electrolyte solutions. ASME. J. Heat Transf.
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]Effect of Sparse Distribution Pores in Thermohaline Convection in a Micropolar Ferromagnetic Fluid22Thermoconvective instability in multi-component fluids has wide range of applications in heat and mass transfer. This paper deals with the theoretical investigation on a horizontal fluid layer of micropolar ferromagnetic fluid heated from below and salted from above saturating a porous medium subjected to a transverse uniform magnetic field using Brinkman model. The salt is a ferromagnetic salt which modifies the magnetic field established. The effect of salinity has been included in the magnetization and density of the ferromagnetic fluid. A theory of linear stability analysis and normal mode technique have been carried out to analyze the onset of convection for a fluid layer contained between two free boundaries for which exact
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]Dual Solutions for MHD Jeffery–Hamel Nano-Fluid Flow in Non-parallel Walls Using Predictor Homotopy Analysis Method22The main purpose of this study is to present dual solutions for the problem of magneto-hydrodynamic Jeffery–Hamel nano-fluid flow in non-parallel walls. To do so, we employ a new analytical technique, Predictor Homotopy Analysis Method (PHAM). This effective method is capable to calculate all branches of the multiple solutions simultaneously. Moreover, comparison of the PHAM results with numerical results obtained by the shooting method coupled with a Runge-Kutta integration method illustrates the high accuracy for this technique. For the current problem, it is found that the multiple (dual) solutions exist for some values of governing parameters especially for the convergent channel cases (α = -1). The fluid in the non-parallel walls, divergent and convergent channels, is the drinking water containing different nanoparticles; Copper oxide (CuO), Copper (Cu) and Silver (Ag). The effects of nanoparticle volume fraction parameter (φ), Reynolds number (Re), magnetic parameter (Mn), and angle of the channel (α) as well as different types of nanoparticles on the flow characteristics are discussed.911919N.FreidoonimehrYoung Researchers & Elite Club, Hamedan Branch, Islamic Azad University, Hamedan, IranYoung Researchers & Elite Club, Hamedan Branch, Islamic Azad University, Hamedan, Iranpaysnfreidoonimehr@yahoo.comM. M.RashidiMechanical Engineering Department, Engineering Faculty of Bu-Ali Sina University, Hamedan, IranMechanical Engineering Department, Engineering Faculty of Bu-Ali Sina University, Hamedan, Iranpaysmm_rashidi@yahoo.comMHD Nano-fluid Jeffery–Hamel flow Non-parallel walls Predictor homotopy analysis method Multiple solutions.[Abbas, Z., Y. Wang, T. Hayat and M. Oberlack (2010). Mixed convection in the stagnation- point flow of a Maxwell fluid towards a vertical stretching surface. Nonlinear Analysis: Real World Applications 11(4), 3218-3228.##
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