沉底装药水下爆炸冲击波传播规律

应用流体动力学分析软件建立沉底装药水下爆炸仿真计算模型，对沉底爆炸过程进行了数值模拟，得到了沉底装药水下爆炸冲击波传播作用规律：沉底装药水下爆炸冲击波传播满足指数衰减规律；水底影响冲击波的传播，对于爆距较小的水底面测点反射波追上入射波形成马赫波，对于水底附近区域测点则产生水底反射冲击波或稀疏波对入射波造成增强或削弱作用。

Research on Shock Wave Propagation of Underwater Explosion of Bottom Charge

A numerical model for simulating the underwater explosion of bottom charge was established using the hydrodynamics analysis software, and the underwater explosion process was numerically simulated to obtain the law of its shock wave propagation. For the underwater explosion of a bottom charge, the shock wave propagation complies with the law of exponential decay. The bottom affected the shock wave propagation. Mach wave was formed due to the reflective wave catching up with the incident wave at the gauge points which were close to the explosion point on the bottom. For the points near the bottom their incident wave was strengthened or weakened by the shock wave or the rarefaction wave reflected from the bottom.