有限水域水中爆炸气泡脉动的数值模拟  

Numerical simulation of bubble pulse of underwater explosion in confined water area

作　　者：贾宪振[1] 王建灵[1] 高赞[1] 郭炜[1] 金朋刚[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《舰船科学技术》2015年第8期31-34,共4页Ship Science and Technology

摘　　要：为研究炸药在有限水域内的气泡脉动规律,在Ansys AUTODYN程序内建立相应的计算模型,该模型考虑静水压力梯度和包括自由面、侧壁和水底在内的边界条件。以Pentolite炸药为例,计算其在Φ12 m×9.5 m爆炸水池内的水中爆炸过程,计算得到的气泡脉动周期与试验结果相吻合。基于该模型,可以计算炸药在有限水域中的气泡脉动过程,对于炸药水中爆炸气泡脉动研究具有参考价值。In order to study bubble pulse in confined water area,a numerical model in which hydrostatic pressure gradient and boundary conditions including free surface,side wall and water bottom were all condidered was constructed in commerical software Ansys AUTODYN. Underwater explosion of pentolite explosive in water pool of Φ 12 m × 10 m were calculated by using the model above,and the calculation results of bubble pulse period agree well with the experimental results. Underwater explosion in confined water area can be calculated based on the model and to evaluate the bubble pulse performance of explosives.

关 键 词：爆炸力学 水中爆炸 气泡脉动 数值模拟 

分 类 号：O383[理学—流体力学]