Study on Dynamics of the Cylindrical Cavitation Bubble Near an Ellipse
Kelvin impulse can be employed in the field of bubble dynamics to predict the jet phenomena during the bubble collapse process.In the present paper,based on the Kelvin impulse theory,the dynamic behaviors of the cylindrical bubble near an ellipse are theoretically studied.The distribution characteristics of the liquid velocity field around the ellipse and the bubble are analyzed through the theoretical model.The effects of the curvature of the ellipse and the location of the bubble on the Kelvin impulse are investigated.The main conclusions include:The Kelvin impulse theoretical model is established to predict the dynamic behaviors of the cylindrical bubble near an ellipse.When a bubble collapses near an ellipse,a low-velocity region will be generated near the ellipse surface.The Kelvin impulse intensity is mainly affected by the bubble position,curvature of the ellipse,and the distance between the bubble and the ellipse.
NETL
NSTL
万方数据
