摘要
本文依据非线性自由面理论,采用欧拉-拉格朗日混合边界元和时间步进方法模拟了锥头物体垂直入水空泡的发展过程。考虑了空泡中气体流动的影响及空泡壁的缩胀效应。计算中采用了拟合、局部放大、限位、合理划分和重分网格等技术,达到了面闭合和深闭合的程度。
On the basis of nonlinear free surface theory, the evolution of cavity after vertical water entry of cone-head bodies by means of mixed Eulirian-Lagrangian boundary element method and time stepping method has been investigated in the present paper. The air flow in the cavity and the effect of cavity contraction and expansion on the flow have been taken into consideration. By using a series of computational manipulations such as curve fitting, local amplification, position restriction and proper griding and regriding the cavity surface closure and deep closure have been simulated numerically.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1989年第2期33-41,共9页
Chinese Journal of Hydrodynamics
