Investigation on The Flow Characteristics of Rotating Nozzle Cavitation Water Jet Flow Field

Wu, W.; Xu, Y.; Yan, Y.; Li, S.; Zhang, J.; Wang, Z.

doi:10.47176/jafm.17.12.2741

Investigation on The Flow Characteristics of Rotating Nozzle Cavitation Water Jet Flow Field

Document Type : Regular Article

Authors

¹ Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing, Heilongjiang Province, 163318, China

² Daqing Oilfield Production Engineering & Research Institute, Daqing, Heilongjiang Province, 163453, China

10.47176/jafm.17.12.2741

Abstract

Rotating cavitation water jet technology is widely used in many industrial fields such as pipeline cleaning, unblocking, cutting, etc. To more accurately analyse the flow characteristics of rotating cavitating water jets, the specific impact of the nozzle rotational velocity on the evolution of the whole flow field was systematically explored in this work. More specifically, a numerical simulation study of a three-nozzle rotating cavitation nozzle was carried out using the Large Eddy Simulation method of the WALE sub-lattice model. After determining 12MPa as the inlet pressure condition. The tangential velocity, vorticity, cavitation cloud development patterns, and wall pressure changes in the internal flow field at different rotational speeds were compared. From our analysis, it was demonstrated that as the nozzle rotates faster, the tangential velocity of the jet increases, leading to a deflection of the jet. The degree of deflection is positively related to the rotational speed. Under the action of shear, the vortex structure will gradually increase in size as the jet develops and finally breaks up and disintegrates. The period of cavitation cloud development and maximum volume fraction increases with increasing the rotational speed; When the rotational speed increases, the striking pressure of the rotating jet on the wall first increases and then decreases. The fitted jet curve can better reproduce the jet development pattern. The derived fitting formula allows the determination of the corresponding impact angle according to the magnitude of the rotational velocity. The existence of a higher nozzle rotation speed induces a greater curvature of the fitted curve, the deflection angle, and the impact angle. Our work provides a robust theoretical reference for the field application of the rotating nozzle cavitation water jet technology and can be used as technical support for industrial well-bore unblocking and pipeline descaling.

Keywords

Main Subjects

Computational Fluid Dynamics

References

Bensow, R. E., & Bark, G. (2010). Implicit LES predictions of the cavitating flow on a propeller. Journal of Fluids Engineering, 132 (4), 041302. https://doi.org/10.1115/1.4001342

Bhatt, M., & Mahesh, K. (2019). Numerical investigation of partial cavitation regimes over a wedge using large eddy simulation. International Journal of Multiphase Flow, 122, 103155. https://doi.org/10.1016/j.ijmultiphaseflow.2019.103155

Cai, T. F., Pan, Y., & Ma, F. (2020). Effects of nozzle lip geometry on the cavitation erosion characteristics of self-excited cavitating waterjet. Experimental Thermal and Fluid Science, 117 https://doi.org/10.1016/j.expthermflusci.2020.110137 Get rights and content

Dabiri, S., Sirignano, W. A., & Joseph, D. D. (2010). Interaction between a cavitation bubble and shear flow. Journal of Fluid Mechanics, 651, 93-116. https://doi.org/10.1017/S0022112009994058

Guo, Q., Zhou, L. J., Wang, Z. W., & Cheng, H. (2018). Numerical simulation for the tip leakage vortex cavitation. Ocean Engineering, 151(3), 117-127. https://doi.org/10.1016/j.oceaneng.2017.12.057

Ji, B., Long, Y., & Long, X. P. (2017). Large eddy simulation of turbulent attached cavitating flow with special emphasis on large scale structures of the hydrofoil wake and turbulence-cavitation interactions. Journal of Hydrodynamics, 29(1), 27-39. https://doi.org/10.1016/S1001-6058(16)60715-1

Chen, J. X., Yang, R. Y., Huang, Z. W., Li, G. S., Qin, X. Z., Li, J. B., & Wu, X. G. (2022). Detached eddy simulation on the structure of swirling jet flow field. Petroleum Exploration and Development, 49(4), 929-941. https://doi.org/10.1016/S1876-3804(22)60322-7

Li, D. Y., Zhao, M. S., Zeng, Q. F., Zheng, Z. Y., Pei, Y. U., Yao, S. Y., & Yao, L. M. (2023). Numerical simulation analysis of hydrodynamic characteristics of modified wedge blade rotary cavitator. Chinese Ship Research, (01), 181-188. https://doi.org/10.19693/j.issn.1673-3185.02547

Ni, L. (2022). Hydrodynamic analysis of rotating descaling nozzle for ultra high pressure water jet ship [Master's Thesis, Zhejiang Ocean University]. https://doi.org/10.27747/d.cnki.gzjhy.2021.000098

Peng, C., Tian, S., & Li, G. (2018). Joint experiments of cavitation jet: High-speed visualization and erosion test. Ocean Engineering, 149, 1-13. https://doi.org/10.1016/j.oceaneng.2017.11.009

Smagorinsky, J. (1963). General circulation experiments with the primitive equations: I the basic experiment. Monthly Weather Review, 91(3), https://doi.org/10.1175/15200493(1963)091x0003C;0099:gcewtp>2.3.co;2

Wang, J. X., Wang, Z. C., Xu, Y., Zhang, J. L., & Li, S. (2023a). Experimental study on the performance of rotary self-feeding cavitation jet nozzle and oil pipe descaling. Mechanical Science and Technology, 1-10. https://doi.org/10.13433/j.cnki.1003-8728.20230048

Wang, L. A., Xu, Y., Wang, Z. C., Li, S., Zhang, J. L., & Liu, H. S. (2023b). Large eddy simulation of cavitation water jet flow field in organ-pipe nozzle. Mechanical Science and Technology, 1-10. https://doi.org/10.13433/j.cnki.1003-8728.20230072

Wang, R. H., Zhou, W. D., Shen, Z. H., & Yang, Y. Y. (1999). Study on the mechanism of rotary jet rock-breaking drilling. Chinese Journal of Safety Science, (S1), 59+104. https://doi.org/10.16265/j.cnki.issn1003-3033.1999.s1.001

Wang, G., & Ostoja-Starzewski, M. (2005). Large eddy simulation of a sheet/cloud cavitation on a NACA0015 hydrofoil. Applied Mathematical Modelling, 31(3), 417-447. https://doi.org/10.1016/j.apm.2005.11.019

Wu, X. Y., Zhang, Y. Q., Tan, Y. W., Li, G. S., Peng, K. W., & Zhang, B. (2022). Flow-visualization and numerical investigation on the optimum design of cavitating jet nozzle. Petroleum Science, (05), 2284-2296. https://doi.org/10.1016/J.PETSCI.2022.05.016

Xu, H. B. (2022). Research on optimal design of new hydraulic cavitation tool [D]. Xi'an Petroleum University, 2022. https://doi.org/10.27400/d.cnki.gxasc.2022.000166.

Yu, A., Feng, W., & Tang, Q. (2022). Large eddy simulation of the cavitating flow around a clark-y mini cascade with an insight on the cavitation-vortex interaction. Ocean Engineering, https://doi.org/10.1016/j.oceaneng.2022.112852

Zhao, J., Jiang, E. Y., Qi, H., Ji, S. M., & Chen, Z. Z. (2020). A novel polishing method for single-crystal silicon using the cavitation rotary abrasive flow. Precision Engineering, 61, 72-81. https://doi.org/10.1016/j.precisioneng.2019.10.002

Zhao, J., Liao, H. L., Xu, Y. J., Shi, F. X., Sun, B. J., Chang, F. R., & Han, X. Q. (2023). Experimental and theoretical evaluation of tubing cutting with rotating particle jet in oil and gas borehole operation. Energy, 282, 128468. https://doi.org/10.1016/j.energy.2023.128468