水下爆炸气泡脉动的实验及数值模拟  

Experiment and Numerical Simulation for the Bubble Impulse in Underwater Explosion

作　　者：荣吉利[1] 李健[1,2] 杨荣杰[3] 王玺[1] 

机构地区：[1]北京理工大学理学院,北京100081 [2]广西工学院汽车工程系,广西柳州545006 [3]北京理工大学材料科学与工程学院,北京100081

出　　处：《北京理工大学学报》2008年第12期1035-1038,1056,共5页Transactions of Beijing Institute of Technology

基　　金：国家部委基金资助项目(A22200600XX)

摘　　要：用实验方法研究球形TNT炸药及柱形含铝炸药水下爆炸冲击波传播及气泡脉动规律.应用有限元程序MSC.DYTRAN,结合流固耦合技术模拟在重力影响下气泡脉动的全物理过程.计算结果与实验结果进行对比说明,二者具有较好的一致性,验证了有限元模型正确、有效,结果准确.以此为基础,分析和总结了状态方程对水下爆炸气泡运动相关参数的影响.有限元模型、方法及计算结果对相关的工程研究和计算具有一定参考价值.Experiments were carried out on the propagation of shock wave and bubble impulse based on the spherical TNT and cylindrical aluminized explosives. Underwater explosion under gravitation was simulated and analyzed using MSC. DYTRAN finite element analysis software. Computational results were compared with experimental results, showing that the structure-fluid coupling method can precisely simulate the motion of bubbles. The relationship between equations of state and motion of bubbles were analyzed and summarized. The research has its value in correlating theoretical research and engineering calculations.

关 键 词：流体力学 水下爆炸 气泡脉动 数值模拟 

分 类 号：O38[理学—流体力学]