摘要
针对圆柱坐标系下原始变量Navier Stokes方程 ,在有限控制容积法和压力修正的基础上 ,引入多重交错网格算法及非线性方程的FAS全近似格式 ,并对封闭圆柱空腔内的旋转流动进行数值模拟 .
There are rich vortex phenomena presented in swirling circulation flow, such as secondary flow and vortex breakdown. For numerical simulation of such complicated recirculating flow, higher requirements are needed for grid density and calculation precision. With the increase of grid points, both convergence rate and calculation precision of traditional iterative numerical methods decrease. On the basis of finite control volume scheme and pressure correction method, the FAS multi staggered grid scheme is presented here for Navier Stokes equation in cylinder coordination. The axisymmetric swirling flow confined in cylindrical container is used as test problem. The results indicate that both convergence rate and calculation precision are highly improved.
出处
《计算物理》
CSCD
北大核心
2001年第4期313-317,共5页
Chinese Journal of Computational Physics
