机库内爆炸效应的数值模拟研究

利用自编程序MMIC3D建立了机库的三维数值模型，采用三维Youngs界面技术对战斗部侵彻机库后发生爆炸情况下的流场分布进行了三维数值模拟。采用后处理软件Visc3D分析了冲击波在机库内的分布情况，在与实验结果对比的基础上，给出了不同关键点的压力曲线和一些规律性的仿真结果，并且通过计算结果的动画处理，清晰地看到战斗部在机库内部爆炸后所形成冲击波的传播规律。这些结果与规律基本符合物理现象和理论分析，对爆炸场近、远场的物理过程及其效应有了深刻的认识和理解，这对于如何高效毁伤机库内的飞机、人员以及相关设施具有重要的参考价值。

Numerical Simulation on the Explosion Effects in a Hangar Deck

A 3D numerical model for a hangar deck was established by using MMIC3D. Numerical simulation on the flow field distribution was performed by adopting Youngs interface technology under the condition that the explosion happens after the warhead penetrates into the hangar deck. The shock wave distribution in the hangar deck was analyzed by employing Visc3D. Based on experimental results, the pressure curves of different key points and some regularity results were given. The propagation process of shock waves was clearly observed by cartoon processing after the explosion in the hangar deck. All of these results were consistent with the physical phenomenon and the theoretical analysis, which is useful for understanding the physical process and explosion effects of the near field and the far field in the hangar deck. These results present valuable information for the efficient damage to the planes, crew and corresponding facilities in the hangar deck .