Numerical study of the cavitating flows over underwater vehicle with large angle of attack
A Homogenous-Equilibrium-Model based cavitation code was developed to numerically analyze the three-dimensional cavitating flows over underwater vehicle navigating with large angle of attack. Rayleigh Plesset equation based cavitation model was used together with non-linear eddy-viscosity turbulence model. The computed cavity shapes and pressure distributions along the vehicle body were found to generally accord with experimental results at different cavitation numbers and angles of attack. The forces acting on the vehicle body was studied qualitatively to explain why the body may get damaged during navigation. It was also discovered interestingly that, the variation trend of dragforce along with cavitation number at the conditions of large angle was completely opposite to that at zero angle.
cavitation numerical angle of attack cavity shape pressure force coefficient
Ying Chen Chuan-jing Lu Jian-hong Guo
Department of Engineering Mechanics,School of Naval Architecture,Ocean and Civil Engineering,Shangha Department of Engineering Mechanics,School of Naval Architecture,Ocean and Civil Engineering,Shangha
国际会议
9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)
上海
英文
889-894
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）