中文摘要：

应用高精度的二维黏性CE/SE方法模拟爆点周围有挡波墙的爆炸流场,分析了挡波墙与冲击波相互作用的规律,得到了能够反映波系结构变化的压力等值线图。数值计算结果显示了冲击波遇挡波墙发生反射、绕流等现象;通过与无挡波墙时的爆炸流场对比,分析了挡波墙的削波作用;同时考察了挡波墙的高度、厚度对远场压力的影响。数值计算结果对于爆炸流场的防护具有理论指导意义。

英文摘要：

Flows of blast waves with gear wave wall around the explosion point is simulated numerically by using two-dimensional viscous CE/SE method. The rule of interaction between blast waves and gear wave wall is analyzed. Pressure contours which can clearly show the transformation of shock structure are obtained： Numerical results show that blast waves reflect or pass around the gear wave wall. By comparing with the explosive field without gear wave wall, the cut effect of a gear wave wall on explosion in air is analyzed. More analyses about pressure far field under the influence of the height or thickness of gear wave wall have been done. Numerical simulation results can be contributed to the research of the protection in the explosive field.