摘要
研究三维多介质界面处理及数值模拟问题。采用拉格朗日法、欧拉法相结合的方法在矩形网格上离散差分基本方程组;在欧拉步中引入模糊方法处理界面,计算各输运量;编写了数值模拟程序,并对线型装药金属罩聚能射流模型进行模拟。证明模糊界面描述和模糊输运计算有效、可行。
The problem for three-dimensional interface treatment and numerical simulation was studied. Control equations were discrete in rectangle cells because the combination of Lagrangian method and Eulerian method was adopted. A fuzzy technique was introduced to treat interface and to calculate transport quantity on Eulerian step. The numerical code is applied to simulate line-shaped charge jet with metal cover. It proves that fuzzy interface description and fuzzy transport calculation are effective.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2005年第1期55-58,共4页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金(10072011)资助项目.
关键词
有限差分
多介质界面
模糊方法
聚能射流
三维数值模拟
Computer simulation
Finite difference method
Fuzzy control
Interfaces (materials)
Shaped charges
Three dimensional
