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|本期目录/Table of Contents|

复杂多舱室内炸药爆炸爆轰产物运动二维数值模拟研究

《应用力学学报》[ISSN:1000-4939/CN:61-1112/O3]

期数:
2019年02期
页码:
400-404
栏目:
出版日期:
2018-12-18

文章信息/Info

Title:
A two-dimensional numerical simulation study on the dynamic motion of the detonation products generatedby the explosive in a complex multi-cabin
作者:
徐维铮12吴卫国12
1 武汉理工大学 高性能舰船技术教育部重点实验室 430063 武汉;2 武汉理工大学 交通学院 船舶、海洋与结构工程系 430063 武汉
Author(s):
Xu Weizheng12 Wu Weiguo12
1 Key Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, 430063, Wuhan, China; 2 Departments of Naval Architecture, Ocean and Structural Engineering, School of Transportation,Wuhan University of Technology,430063,Wuhan,China
关键词:
复杂多舱室内炸药爆炸三阶WENO格式数值计算爆炸波爆轰产物泄压
分类号:
O354.5
DOI:
10.11776/cjam.36.02.D009
文献标识码:
A
摘要:
为了研究复杂多舱室空间内炸药爆炸后爆轰产物运动规律,采用三阶WENO有限差分格式,通过耦合求解两组分可压缩欧拉方程,自主编写了多舱室内炸药爆炸过程二维数值计算程序。利用平面激波绕射矩形台阶上的竖直平板实验与数值模拟纹影图进行了对比,图中不同时刻的波系结构和台阶、竖直平板处绕射形成的漩涡结构均证明了文中程序开发的可靠性和正确性。采用验证的程序开展了复杂多舱室内炸药爆炸过程数值计算,探讨了复杂多舱室内炸药爆炸爆轰产物的传播路径及泄压口泄压对爆轰产物运动规律的影响。研究表明:舱室泄压对复杂多舱室内爆轰产物运动的影响,在爆炸初期较小,在爆炸后期较大;爆炸舱室内部泄压能显著地降低相邻舱室超压载荷强度(40%左右),减弱爆炸对相邻舱室的毁伤效应。本文的研究可为进一步探讨、考虑燃烧效应后爆轰产物扩张过程及爆炸毁伤评估提供一定的参考和指导。

参考文献/References

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