摘要
基于任意多边形网格邻域可变技术,提出一种针对多介质带有间隙计算模型的闭穴滑移计算方法,实现了复杂工程中带有间隙问题的数值模拟.该方法避免了传统算法中以直代曲的缺陷,克服了传统方法由于网格扭曲变形带来的接触点求解的困难.数值模拟结果验证了方法的可行性,体现了算法对间隙闭穴的无缝连接特点.
We present a closed void interface method for computational models with void interface in multi-material problems. It simulates void successfully in complicated engineering. It bases on a technique of changeable mesh topology. It avoids using a straight line to replace a curve in traditional method, and overcomes difficulty in solving contact points. Numerical simulations confirm that the technique is effective. It shows characteristic of no void connectivity.
出处
《计算物理》
EI
CSCD
北大核心
2012年第5期667-674,共8页
Chinese Journal of Computational Physics
基金
国家自然科学基金(11072039)
中国工程物理研究院科学基金(2011B0202043)资助项目
关键词
邻域可变
闭穴滑移计算技术
拉氏方法
changing connectivity of mesh
closed void interface technique
Lagrangian method
