Finite Spectral Semi-Lagrangian Method for Incompressible Flows  

作　　者：LI Shao-Wu WANG Jian-Ping 李韶武;王健平(State Key Laboratory on Turbulence and Complex System,and Department of Mechanics and Aerospace Engineering,College of Engineering,Peking University,Beijing 100871)

机构地区：[1]State Key Laboratory on Turbulence and Complex System,and Department of Mechanics and Aerospace Engineering,College of Engineering,Peking University,Beijing 100871

出　　处：《Chinese Physics Letters》2012年第2期122-125,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 108720006;the National Basic Research Program of China under Grant No 2007CB714601.

摘　　要：A new semi-Lagrangian (SL) scheme is proposed by using finite spectral regional interpolation and adequate numerical dissipation to control the nonlinear instability.The finite spectral basis function is C1 continuous at the boundary and is easy to construct.Comparison between numerical and experimental results indicates that the present method works well in solving incompressible Navier-Stokes equations for unsteady flows around airfoil with different angles of attack.

关 键 词：FINITE UNSTEADY INTERPOLATION 

分 类 号：O17[理学—数学]