Numerical study on the control mechanism of cloud cavitation by obstacles

摘要：

Numerical simulations of cavitating flows on 2D NACA0015 hydrofoils with and without obstacle are performed. Cavitation model is based on a transfer equation for a void mass fraction and an improved RNG k-e model is adopted to study the turbulent cavitating flows around the foils. Different arrangements and geometric parameters of the obstacles are investigated. Computational results show that cloud cavitation can be reduced effectively by an obstacle placed on the foil surface; also the performance of the hydrofoil is changed by the obstacle simultaneously.

关键词： Cavitation Re-entrant jet NACA0015 Obstacle Multip hase

作者: Wei-guo Zhao Ling-xin Zhang Xue-ming Shao Jian Deng

作者单位: Institute of Fluid Engineering,Department of Mechanics,Zhejiang University,Hangzhou,China

会议类型: 国际会议

会议名称: 9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)

会议地点: 上海

会议语种:英文

页码: 789-794

在线出版日期: 2010-10-11（万方平台首次上网日期，不代表论文的发表时间）