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 引用本文: 郝莉 马天宝 王成 吴开腾. 爆炸冲击波绕流的三维数值模拟研究[J]. 力学学报, 2010, 42(6): 1042-1049.
Ma Tianbao. Three dimensional numerical simulation study on the flow of the explosion shock wave around the wall[J]. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(6): 1042-1049.
 Citation: Ma Tianbao. Three dimensional numerical simulation study on the flow of the explosion shock wave around the wall[J]. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(6): 1042-1049.

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

• 摘要: 对爆炸冲击波绕流问题采用可压缩流体模型建立了质量、动量和能量的偏微分守恒方程组,基于多物质流体Euler型算法, 采用算子分裂格式, 运用体积份额法处理多介质界面, 用自行开发的三维数值模拟程序MMIC3D模拟计算了三维空中爆炸的爆源附近和爆炸场中冲击波流场的发展规律, 研究了挡墙拐角处绕流的形成和变化情况, 分析比较了挡墙的位置、形状对挡墙后爆炸冲击波的影响, 并与经验公式进行了比较研究. 数值计算基本符合物理规律,说明文中采用的模型和算法是合理的, 为工程设计减压设施提供了数值计算依据．

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

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