The Study of the Cavity Inception in the Shear Flowing Liquids with a New Criteria
The cavitation will open because the stress induced by the shear flow in the high pressure systems is larger than the cavitation threshold or the tensile strength. A new criterion is accepted in this paper which utilizes the stress state to estimate the inception of cavitation instead of the classical pressure which is a mean normal of the stress. A full cavitation model which includes the dynamics of the cavity and the incompressible gas is used to analyze the pressure and the distribution of the phase in the Ⅴ-type orifice. Comparing with the experimental data, the numerical results show a good agreement with it. Therefore, the full cavitation model could achieve a reasonable prediction for the cavity flow in the Ⅴ-type orifice.
shear flow cavity inception jet flow full cavitation model
Yang Huayong Ren Haoling Xie Haibo
The State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, 310027, China
国际会议
北戴河
英文
366-370
2007-06-06（万方平台首次上网日期，不代表论文的发表时间）