%0 Journal Article
%T NUMERICAL STUDY OF UNDERWATER EXPLOSION NEAR AIR-WATER SURFACE<br>近水面水下爆炸的数值研究
%A Fu Song
%A Wang Zhiping
%A Zhang Zhaoshun
%A Cui Gukiang
%A <br>符松
%A 王智平
%A 张兆顺
%A 崔桂香
%A 李润珊
%J 力学学报
%D 1995
%I 
%X The strong blast-wave generated from an intense underwater explosion interactsstrongly with the air-watcrinterfacet forming refractive shock wave and reflective rarefactionwave.These waves are regular initially,but soon develops into irregular pattern. Accompa-nied with this interaction between the blast wave and the free surface,a spray dome formsand develops into a huge hollow water-column. These complex physical features put greatdemands on numerical computation that the numerics should be able to capture severe free-surface distortion and complex wave pattern. In the present work,we apply the level-setfunction approach to resolve the free-surface motion,the distortion of the surface and theinteractions between air-water interface and blast wave can be successfully captured.Thepresent method is simple and second-order accurate. It provides an effective means forsolving the problems involving free-surface motion.
%K blast wave
%K free surface
%K level-set function
%K refraction wave
%K rarefaiction wave<br>冲击波
%K 自由界面
%K 折射波
%K 稀疏波
%K 水下爆炸
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=18E4054FCB3C7B864C55EBE3DEDD5652&yid=BBCD5003575B2B5F&vid=DB817633AA4F79B9&iid=38B194292C032A66&sid=866F8A6B640835A7&eid=44A4891E33BFF455&journal_id=0459-1879&journal_name=力学学报&referenced_num=12&reference_num=2