This experimental analysis encapsulates the influence of Reynolds number (Re), diameter of nozzle, height to diameter (H/D) ratio and position of nozzle such as in-line and staggered over the responses heat transfer coefficient, temperature and Nusselt number of a hot flat plate exposed to cooling by multi-jet air impingement. For this analysis, a 15 x 10 cm flat plate is being heated using a heating coil having a heat flux of 7666.67 W/m2 which is maintained as constant through entire experiment. An H/D ratio of 2D, 4D and 6D is considered along with pipe diameters of 4, 6 and 8 mm and Reynolds number are changed between 18000 to 22000. Experimental design was performed with response surface methodology based central composite design. For all output responses, a quadratic model is chosen for analysis and a second order mathematical model is evolved for predicting with a higher R2 value. Desirability analysis is performed for multi-objective optimization and the optimum input parameters obtained are Reynolds no. of 20347, pipe diameter of 8 mm, H/D ratio of 2 and in-line nozzle position with the maximum heat transfer coefficient of 189.411 W/m2 K, Nusselt number of 28.8712 and minimum temperature of 56.983°C. Optimum condition-based confirmation experiments result in enhanced Nusselt number and heat transfer coefficient.
Chandramohan, P., Murugesan, S. N., & Arivazhagan, S. (2020). Experimental Investigation of Multi-Jet Air Impingement in Various Conditions and Analysis using Desirability Based Response Surface Methodology. Journal of Applied Fluid Mechanics, 14(1), 131-145. doi: 10.47176/jafm.14.01.31643
MLA
P. Chandramohan; S. N. Murugesan; S. Arivazhagan. "Experimental Investigation of Multi-Jet Air Impingement in Various Conditions and Analysis using Desirability Based Response Surface Methodology". Journal of Applied Fluid Mechanics, 14, 1, 2020, 131-145. doi: 10.47176/jafm.14.01.31643
HARVARD
Chandramohan, P., Murugesan, S. N., Arivazhagan, S. (2020). 'Experimental Investigation of Multi-Jet Air Impingement in Various Conditions and Analysis using Desirability Based Response Surface Methodology', Journal of Applied Fluid Mechanics, 14(1), pp. 131-145. doi: 10.47176/jafm.14.01.31643
VANCOUVER
Chandramohan, P., Murugesan, S. N., Arivazhagan, S. Experimental Investigation of Multi-Jet Air Impingement in Various Conditions and Analysis using Desirability Based Response Surface Methodology. Journal of Applied Fluid Mechanics, 2020; 14(1): 131-145. doi: 10.47176/jafm.14.01.31643
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