Numerical analysis for influence of restriction of charges on shock wave propagation inside cavity

Shock wave propagation under different restriction, such as exploding in the center of the cavity, on the ground, the edge of wall, or in the corner, was all computed based on LS-DYNA3D with the method of fluid-structure interaction. The pressure of shock wave was analyzed with the complex propagation of exploding in the cavity. By contrasting the change of blast pressure under different restriction, the pressure of exploding in the corner or on the edge of wall, was greater than the condition of lower restriction.