• 研究论文 •

### 爆炸冲击波绕流的三维数值模拟研究

1. 1. 北京建筑工程学院 理学院
2. 北京理工大学爆炸科学与技术国家重点实验室
3. 内江师范学院 四川省高等学校数值仿真重点实验室
• 收稿日期:2009-07-22 修回日期:2010-03-11 出版日期:2010-12-10 发布日期:2010-12-02
• 通讯作者: 王成 E-mail:wangcheng@bit.edu.cn

### Three dimensional numerical simulation study on the flow of the explosion shock wave around the wall

1,Ma Tianbao2, 2, 3

1. 1. Science School, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
3. Key Laboratory of Numerical Simulation of Sichuan Province, College of Mathematics and Information Science, Neijiang Normal University, Neijiang 641112, China
• Received:2009-07-22 Revised:2010-03-11 Online:2010-12-10 Published:2010-12-02

Abstract: The partial differential conservation equations for mass, momentum and energy are applied by adopting the compressible fluid model for the explosion flow field. Based on the Eulerian algorithm of multi-material in cell (MMIC), the operator splitting scheme is used, and the moving interface is treated by volume ratio method. The development of the shock wave near the explosion source and in the explosion field caused by three-dimensional air explosion are simulated using three-dimensional numerical simulation code MMIC3D compiled by authors. The formation and change of the flow field around the corner wall are studied. Furthermore the effects of the explosion shock wave are analyzed and compared with the empirical formula because of different locations and different shapes of the protective wall. The simulation results turn out to be in full agreement with the principle of physics. It also indicates that the model and algorithm presented in this paper are proper, thus the numerical simulation can be used for engineering design of decompression facilities.

Key words: protective wall

• O347.5