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FAST MULTIGRID METHOD FOR 3‐D TURBULENT INCOMPRESSIBLE FLOWS

XUE‐SONG BAI (Department of Gasdynamics, Royal Institute of Technology, S‐100 44 Stockholm, Sweden)
LASZLO FUCHS (Department of Gasdynamics, Royal Institute of Technology, S‐100 44 Stockholm, Sweden)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 1 February 1992

Abstract

The averaged Navier‐Stokes and the k‐e turbulence model equations are used to simulate turbulent flows in some internal flow cases. The discrete equations are solved by different variations of Multigrid methods. These include both steady state as well as time dependent solvers. Locally refined grids can be added dynamically in all cases. The Multigrid schemes result in fast convergence rates, whereas local grid refinements allow improved accuracy with rational increase in problem size. The applications of the solver to a 3‐D (cold) furnace model and to the simulation of the flow in a wind tunnel past an object prove the efficiency of the Multigrid scheme with local grid refinement.

Keywords

Citation

BAI, X. and FUCHS, L. (1992), "FAST MULTIGRID METHOD FOR 3‐D TURBULENT INCOMPRESSIBLE FLOWS", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 2 No. 2, pp. 127-137. https://doi.org/10.1108/eb017485

Publisher

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MCB UP Ltd

Copyright © 1992, MCB UP Limited