A three-dimensional Eulerian method for the numerical simulation of high-velocity impact problems

作者：Wu Shi Yu; Liu Kai Xin^*; Chen Qian Yi

来源：Chinese Physics B, 2014, 23(3): 034601.

DOI：10.1088/1674-1056/23/3/034601

• three-dimensional numerical simulation
• conservation element and solution element (CE/SE) method
• ghost fluid method
• high-velocity impact

In the present paper, a three-dimensional (3D) Eulerian technique for the 3D numerical simulation of high-velocity impact problems is proposed. In the Eulerian framework, a complete 3D conservation element and solution element scheme for conservative hyperbolic governing equations with source terms is given. A modified ghost fluid method is proposed for the treatment of the boundary conditions. Numerical simulations of the Taylor bar problem and the ricochet phenomenon of a sphere impacting a plate target at an angle of 60 degrees are carried out. The numerical results are in good agreement with the corresponding experimental observations. It is proved that our computational technique is feasible for analyzing 3D high-velocity impact problems.

• 出版日期2014-3
• 单位北京大学