Shock wave propagation characteristics of underwater double bomb explosion
Important wading buildings are vulnerable to underwater multi-bomb explosion,and the shock wave characteristics of underwater multi-bomb explosion and single bomb explosion are significantly different.In order to study the propagation characteristics of underwater double bomb explosion shock wave,the propagation process of underwater single bomb and double bomb explosion shock wave with the same mass is numerically simulated,the similarities and differences of the propagation characteristics of the shock waves are analyzed,and the propagation characteristics of underwater double bomb explosion with different initiation distance and different initiation equivalent are discussed.The results show that the shock wave propagation characteristics of underwater double bomb explosion are obviously different from that of underwater single bomb explosion.The superposition effect of shock wave appears on the symmetric plane of the two bombs,and the peak pressure and specific impulse of the shock wave of the underwater double bomb explosion are about 1.43 times and 1.73 times of the same mass single bomb explosion,respectively.There will be two peaks on the asymmetric plane,the first wave is higher than the second wave.The research results lay a foundation for the subsequent research on the shock wave propagation characteristics of underwater multi-bomb explosions.