中文摘要：

基于空泡截面独立扩展原理,编写自然超空泡形态时变特性计算软件.5级海况波浪扰动下,超空泡长度变化不超过5%,最大截面半径变化不超过2%;随着航行深度的增加,超空泡尺寸逐渐减小;当遇到较大压力脉冲时,超空泡从中前部溃灭,空化器附近仍保留部分空泡;波浪对水下航行体超空泡流动的影响较小;在变深度运动时,须注意超空泡尺寸变化幅度,避免航行体沾湿;爆炸冲击波对超空泡流动有较大破坏作用.

英文摘要：

Based on the principle of independence of cavity section expansion,software was given to calculate the shape time-variation characteristic of supercavity.The cavity length changes within 5%,and the maximun radius variety doesn＇t exceed 2% in rough wave.The cavity dimension decreases with the increase of navigation depth.A part of cavity collapses rapidly when the pressure impulse is large enough,and other cavity retains close to the cavitator,and the cavity shape can hardly be kept.The effect of ocean wave on the supercavity of underwater vehicle is little.The cavity dimension should be noticed to ensure that the vehicle is not wetted while depth changing.The supercavitating flow can be destroyed by explosion shock.