中国物理B ›› 2014, Vol. 23 ›› Issue (3): 34601-034601.doi: 10.1088/1674-1056/23/3/034601
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
吴士玉a, 刘凯欣a b, 陈千一a
Wu Shi-Yu (吴士玉)a, Liu Kai-Xin (刘凯欣)a b, Chen Qian-Yi (陈千一)a
摘要: 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° 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.
中图分类号: (Computational methods in continuum mechanics)