25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-2.6.4

AN EFFICIENT PRECONDITIONING METHOD AND ITS APPLICATION TO NUMERICAL SIMULATION OF STEADY AND UNSTEADY VISCOUS FLOWS

Z. H. Han, Z. D. Qiao, W. P. Song, J. T. Xiong
Northwestern Polytechnical Univ., China

Keywords: Navier-Stokes Equations, preconditioning method, multigrid method, fully implicit scheme, LU-SGS Method

An efficient preconditioning method for solving compressible Navier-Stokes (NS) equations was presented. Matrix preconditioning was incorporated with multigrid and dual-time stepping method, which resulted in a very efficient approach for solving viscous, unsteady flows. Numerical simulation of steady and unsteady viscous flow over airfoils was investigated.

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