When a high-velocity projectile penetrates a liquid-filled container, the projectile transmits its energy to the liquid through different ways; thus, different types of pressure waves can be generated in the liquid. In this study, an analytical model was established to calculate the drag pressure caused by two projectiles penetrating a liquid-filled container. The potential flow theory was used to calculate the pressure wave generated by the projectiles. The cavity was regarded as a wave-barrier and a pressure-release interface to include its influence on the pressure distribution. First, two types of experimental results were used to verify the analytical model. The analytical results were then compared with the results obtained by an experimentally verified numerical model to verify the proposed partition method. The influence of impact time interval on the pressure and specific impulse was also investigated. It was found that due to the shielding of the cavity on the pressure wave, the pressure and impulse at some specific regions were not affected by the impact time interval between two projectiles.

当高速弹丸穿透充满液体的容器时，弹丸通过不同的方式将其能量传输到液体中。因此，可以在液体中产生不同类型的压力波。在这项研究中，建立了一个分析模型来计算由两个射弹穿透一个充满液体的容器所引起的阻力。势流理论用于计算弹丸产生的压力波。该腔被视为波阻和压力释放界面，以包括其对压力分布的影响。首先，使用两种类型的实验结果来验证分析模型。然后将分析结果与通过实验验证的数值模型获得的结果进行比较，以验证所提出的分配方法。还研究了冲击时间间隔对压力和比冲的影响。结果发现，由于空腔在压力波上的屏蔽作用，某些特定区域的压力和冲量不受两个射弹之间的碰撞时间间隔的影响。