水下爆炸试验相似准则  

Similarity criteria for experiment of underwater explosion

作　　者：张效慈[1] 

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶力学》2007年第1期108-118,共11页Journal of Ship Mechanics

摘　　要：水下爆炸现象很复杂,根本不可能做到完全性的相似,哪怕做到一般船舶力学中的流体近似相似也相当困难。因此文献中有关水下爆炸相似律的描述就显得特别简单、笼统和模糊。文章首先对已经公认的一次冲击波的相似律作些解释,说明对一次冲击波的相似律也就是这些了,否则只能做原型试验,再对文献中没有出现过的气泡脉冲相似律的选择作了推导,最后将水下爆炸相似律拓广到与结构耦合上去。The phenomena of underwater explosion are so complex that the description of similarity laws seen simple, general and indistinct in literature. In this paper, some generally recognized similar laws for the shock wave of underwater explosion were explained,in order to show that there is no alternative choice. The similarity of bubble pulsing for tests of underwater explosion was derived,and the scaling laws for underwater explosion in free fluid field were connected to the structure similarity.

关 键 词：相似准则 水下爆炸 冲击波 气泡脉冲 

分 类 号：O382.4[理学—流体力学]