Dynamic behavior of a bubble near a rigid wall in underwater explosion

One-dimensional FE model for explosive detonation and propagation of shock wave was established and the simulation was done based on MSC. DYTRAN software. The computational results of the peak pressures of shock wave were compared with the test ones. The agreement between them verified the correctness of the FE model. The initial conditions of a three-dimensional bubble were determined by mapping the computational results of the one-dimensional model into a 3D fluid field. Subroutines to define the initial conditions and boundary conditions of the fluid field were developed. The dynamic behavior of a bubble near a rigid wall was simulated and analyzed. The interactions between the bubble and the rigid wall were studied systematically. It was shown that the dynamic behavior of the bubble is closely related to distance parameters and the angle of the rigid wall surface. The study provided a reference for the related studies and engineering calculation.