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中文摘要：
据研究表明，对于舰船工程而言，水下爆炸造成的危害十分巨大，爆轰冲击波仅对脱船产生局部破坏，而气泡运动引起的脉动压力、滞后流对舰船造成总体破坏，危及舰船总纵强度，使舰船在中横剖面处断裂，且气泡坍塌形成的射流还会引起结构局部毁伤，近年来气泡和水中结构物的相互作用已成为国际上研究热点。为此，本文从水下爆炸气泡的基本现象入手，着重从理论分析、试验技术以及数值方法等方面阐述国内外该领域的研究进展及现状，回顾和讨论了水下爆炸气泡膨胀、坍塌、溃灭以及射流形成等重要动力学行为的研究进程及关键技术。最后，在前人研究基础上提出了一些尚需进一步解决的问题，旨在为业界同行提供参考。
英文摘要：
Many researches show that underwater explosion can cause severe damage on warships.Shock wave in explosion only generates local damage on the warship;while the pulsating pressure and retarded flow resulted from bubble motion can induce total damage,endangering the total longitudinal strength and provoking the rupture in the midship section.Moreover,the jet formed in the bubble collapse phase will produce the local damage of structure.Recently the interaction of bubble and underwater structure was the focus of the international researches. Therefore, starting with the basic phenomenon of underwater explosion bubble, this paper mainly expounds the research development and present state in this field from theoretical analysis,experimental technique and numerical methods,and reviews and discusses the research progress and key techniques of underwater explosion bubble dynamics such as expansion,collapse and jet formation.Finally,some problems needing further settlement are put forward on the basis of former researches in order to offer consult for craft brothers.
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