A high-resolution Eulerian method for numerical simulation of shaped   charge jet including solid-fluid coexistence and interaction

doi:10.1016/j.compfluid.2011.11.017

CORC > 北京大学 > 工学院

	A high-resolution Eulerian method for numerical simulation of shaped charge jet including solid-fluid coexistence and interaction
	Chen, Qianyi ; Liu, Kaixin
刊名	computers fluids
	2012
关键词	CE/SE scheme Level set method High explosive Shaped charge jet Large deformation Plastic flow LEVEL SET METHOD VOID COLLAPSE IMPACT PENETRATION DETONATION INTERFACE METALS FRACTURE COPPER FLOWS
DOI	10.1016/j.compfluid.2011.11.017
英文摘要	In the present paper, an innovative computational method, consisting of a newly developed scheme for solving the Euler equations and a high-resolution interface tracking method, for the numerical simulation of shaped charge jet is proposed. An axisymmetric framework is established to solve the problem with solid-fluid coexistence and interaction. An Eulerian formulated expression considering temperature rises caused by both shock waves and plastic work is proposed in the incremental form. The viscosity effect of the solid material is accounted for in the stress update algorithm. The governing equations are solved by the improved CE/SE scheme. The hybrid particle level set method is adopted for tracking and capturing material interfaces. The ghost-fluid type boundary technique is used to give the natural boundary conditions. A more considerate solid-gas interaction technique which accords with the physical nature better is proposed. The code developed by us is validated by two benchmark tests. The numerical simulation of shaped charge jet is carried out and compared to the corresponding experimental results. The velocity and the surface temperature of the jet are in good agreement with the experimental data. It is proved that our computational method is feasible and reliable for predicting the shaped charge jet problem. (C) 2011 Elsevier Ltd. All rights reserved.; Computer Science, Interdisciplinary Applications; Mechanics; SCI(E); EI; 0; ARTICLE; 92-101; 56
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/234035]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Qianyi,Liu, Kaixin. A high-resolution Eulerian method for numerical simulation of shaped charge jet including solid-fluid coexistence and interaction[J]. computers fluids,2012.
APA	Chen, Qianyi,&Liu, Kaixin.(2012).A high-resolution Eulerian method for numerical simulation of shaped charge jet including solid-fluid coexistence and interaction.computers fluids.
MLA	Chen, Qianyi,et al."A high-resolution Eulerian method for numerical simulation of shaped charge jet including solid-fluid coexistence and interaction".computers fluids (2012).