Application of the MVPPM-Based Fluid-Solid Coupling Method to the Explosion Vessel Simulations

The flow field evolvements inside the explosion vessel volume and the dynamic response of the vessel shell are basic data in designing of the vessel shape, structure and material selection. But for some reason of the vessel large scale, multi-component, high-density ratio and complex structure, and thus the numerical simulation of explosion flow field inside the vessel is very difficult. In this study, we utilized the level set method differentiate the large deformation of the flow field from the small deformation of the vessel, and the Euler MVPPM method and Lagrange were respectively used in numerical calculations. The ghost fluid technology was employed to deal with the fluid and solid at the interface of the physical information. We successfully applied the present method to the ellipsoidal head and the similar spherical explosion vessel simulations.