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

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

吴士玉a, 刘凯欣a b, 陈千一a   

  1. a LTCS and Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China;
    b Center for Applied Physics and Technology, Peking University, Beijing 100871, China
  • 收稿日期:2013-09-12 修回日期:2013-07-23 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10732010, 10972010, and 11332002).

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

Wu Shi-Yu (吴士玉)a, Liu Kai-Xin (刘凯欣)a b, Chen Qian-Yi (陈千一)a   

  1. a LTCS and Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China;
    b Center for Applied Physics and Technology, Peking University, Beijing 100871, China
  • Received:2013-09-12 Revised:2013-07-23 Online:2014-03-15 Published:2014-03-15
  • Contact: Liu Kai-Xin E-mail:kliu@pku.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10732010, 10972010, and 11332002).

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.

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

Abstract: 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.

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

中图分类号:  (Computational methods in continuum mechanics)

  • 46.15.-x
62.20.mm (Fracture) 64.30.Ef (Equations of state of pure metals and alloys)