中文摘要：

应用高精度的CE／SE方法对厂房中爆炸冲击波扫过障碍物挡墙形成的流场进行了二维数值模拟，具体分析了障碍物、厂房内壁与冲击波相互作用的规律，得到了能够反映障碍物作用前后波系结构变化的压力等值线图．数值结果显示了冲击波遇障碍物发生反射、绕流等现象，形成复杂波系；通过与尤障碍物存在的爆炸流场对比，分析了相对于爆点不同位置的障碍物对爆炸流场的影响；最后改变爆点个数，对爆炸流场的变化做了进一步分析．数值模拟结果符合相关物理规律．

英文摘要：

In this paper, a two-dimensional flows of blast waves in a workshop is simulated numerically by using a high precise CE/SE method. Interactional principles among blast waves, obstacles and internal walls of the workshop are analysed. A pressure contours chart is obtained that can clearly show the volution of shock structure. Numerical results show complex wave systerm as blast waves reflecting or passing around the obstacles. By comparing with the explosive field without obstacles, we analyze the influence which obstacles with different distance to center of explo- sion point effect on explosive field. At last, more analysis about the change of the explosive field have been made by changing the number of explosion point. Numerical results accord with the relevant physical laws.