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

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...

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Bibliographic Details
Published inChinese physics B Vol. 23; no. 3; pp. 338 - 347
Main Author 吴士玉 刘凯欣 陈千一
Format Journal Article
LanguageEnglish
Published 01.03.2014
Subjects
Computational fluid dynamics
Computer simulation
Fluid flow
Ghosts
Impact analysis
Mathematical analysis
Mathematical models
Three dimensional
三维数值模拟
冲击问题
控制方程
欧拉法
计算结果
边界条件
高速撞击
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/23/3/034601

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Summary: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.
Bibliography:three-dimensional numerical simulation, conservation element and solution element （CE/SE）method, ghost fluid method, high-velocity impact
11-5639/O4
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.
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/3/034601