浅层水中沉底爆炸冲击波相互作用数值模拟

根据试验模型和试验结果，进行了浅层水中沉底爆炸冲击波相互作用数值模拟；研究了水底水面对沉底爆炸冲击波传播与相互作用的影响。结果表明，水底对冲击波压力峰值有较大的削弱作用，水面使冲击作用冲量明显减少，冲击波相互作用的压力叠加或多次冲击作用大大提高了爆炸威力。

Numer ical Simulation of Explosive Shockwave Interactionin Shallow-layer Water

Based on experimental pattern and test results, exploding proceeding of two-charge at bottom in shallow-layer was simulated numerically. Comparisons of explosion processes of single-charge, two-charge exploding at bottom in shallow-layer water and two-charge exploding in infinitive water were made. Shock waves propagation and their interaction affected by bottom and free surface were analyzed. Affected by free surface and bottom, maximum value of shock-wave pressure and its impulse were reduced. During the reaction of two waves, blasting power must be increased.