爆炸与冲击2011，Vol.31Issue(3)：250-255,6.
水中爆炸气泡与水底边界相互作用的水射流现象
Water jet phenomena induced by the interaction betweenunderwater explosion bubbles and water bottom boundaries
摘要
Abstract
The Kelvin impulse principle was applied to analyze the major influence factors in the formation of the water jet by the interaction between an underwater explosion bubble and a water bottom boundary. And a series of experiments were conducted in a water tank to investigate the water jet phenomena induced by the interaction between bubbles and a horizontally placed steel plate. The distance between the explosive and the steel plate was changed with the different experimental conditions. The oscillation pictures of the water jets were captured by a high-speed camera and the pulse pressures of the bubbles were obtained by pressure sensors at the positions with the different distances away from the explosion source. Both the theoretical analysis and the experimental results show that the Bjerknes force increases markedly with the decreasing distance between the explosive and the steel plate, and the critical condition, for the formation of the water jet by the interaction between the bubble and the horizontally placed steel plate, is that the explosion distance is shorter than the maximum bubble radius. And the water jet has a distinct orientation and it can remarkably damage the target.关键词
爆炸力学/水射流/气泡脉动/水中爆炸/Bjerknes力Key words
mechanics of explosion/ water jet/ bubble oscillation/ underwater explosion/ Bjerknes force分类
数理科学引用本文复制引用
汪斌,张远平,王彦平..水中爆炸气泡与水底边界相互作用的水射流现象[J].爆炸与冲击,2011,31(3):250-255,6.基金项目
国家重点基础研究发展计划(973计划)项目(51335010202) （973计划）
中国工程物理研究院面上基金项目(20060101) （20060101）
