关键词: 零质量射流, N-S方程, 预处理方法, 多重网格法

Abstract:

By introducing local synthetic jet control to the flow over airfoil, separation control can be implemented with low energy cost. The timeaccurate Reynoldsaveraged Navier-Stokes equations are solved by a finite-volume scheme using preconditioned multigrid acceleration and a fully implicit “dual time method” with Newtonlike LU-SGS subiterations.An efficient and robust numerical method and computer code are developed to simulate the active stall control on airfoil.

Key words: active , flow , control,  , synthetic , jet,  , Navier-Stokes , equations,  , preconditioning , method,  , multigrid , method