Numerical research on the cavitation effect induced by underwater multi-point explosion near free surface

In this study, the cavitation effect induced by two charges in underwater explosions near free surfaces is numerical researched dimensional compressible multiphase fluids based on a four-equation system with phase transition model. The occurrence of generation, development, and collapse two-charge can be captured directly. detailed density, pressure, vapor volume fraction contours during interaction process are obtained better reveal characteristic underlying cavitation, surface, explosion bubbles. Numerical results that domain has expanded to an area much deeper than bubble location explosions, which should paid enough attention due its influence input load structures. density pressure also mechanism bubble, surface wave dynamics. present expand currently limited database fluid provide new insights into strong nonlinear between provides deep understanding multi-point explosions.