Efficient solution of the steady Navier-Stokes equations based on two-level discretization techniques
In this paper, we study the linear systems arise from steady Navier-Stokes (N-S) equations with different nonlinear term (divergence form and skew-symmetric form). Based on the Hermitian/skew-Hermitian splitting(HSS) techniques, we present a two- level algorithm for solving discrete Ossen equations arise from modified Picard linearization. This algorithm involves solving a nonlinear system on the coarse mesh and solving symmetric positive definite systems and shifted skew-symmetric systems on the fine mesh. It shows that our algorithm is efficient for the Oseen systems.
Shishun Li Xinping Shao
Department of Mathematics Zhejiang University Hangzhou, P.R. China
国际会议
太原
英文
30-33
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）