摘要
采用Ｗ．Ｆ．Ｎｏｈ提出的人为粘性和人为热流方法，构造了计算人为热流的二维差分格式。应用Ｌａｇｒａｎｇｅ型流体力学计算程序，计算了一种二维轴对称高速碰撞模型。计算结果表明，人为热流方法可以很好地消除人为粘性在碰撞界面处的误差。
In this paper,a two-dimensional(2D)differential equation for calculating artifi-cial heat flux is given by using Noh's artificial viscosity and heat flux method. A 2D cylindricalmedel under high velocity impact is calculated by using Lagrange hydrodynamic programme,theresults show that Noh's artificial viscosity and heat flux method can remove the artificial viscosityerror in the impact interface.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1995年第1期37-43,共7页
Explosion and Shock Waves
关键词
人为粘性
人为热流
数值模拟
流体力学
artificial viscosity,artificial heat flux,differential equation,numerical simula-tion
