潜射导弹尾空泡从生成到拉断过程的数值模拟

Numerical simulation of the development process of a trailing cavity from generation to separation

以气体弹射方式发射的潜射导弹,会在导弹尾部产生空泡。本文采用改进的MAC方法成功地模拟了尾空泡的生成、扩张、收缩和拉断过程,揭示了尾空泡周围的流场结构,研究了尾空泡的发展对潜艇固壁所受压力的影响。

When a body is launched underwater by gas ejection, a trailing cavity is formed on the aft-end of the body. A modified MAC method was used to numerically simulate the development process of the trailing cavity. The configuration of flow field around the trailing cavity was established, and the effect of the development of the cavity on the pressure distribution on the wall of the launching platform was studied.