Semi-Coarsening in Multigrid Solution of Steady Incompressible Navier-Stokes Equations

Semi-Coarsening in Multigrid Solution of Steady Incompressible Navier-Stokes Equations

Year:    1990

Author:    Lin-Bo Zhang

Journal of Computational Mathematics, Vol. 8 (1990), Iss. 1 : pp. 92–98

Abstract

We present a semi-coarsening procedure, i.e., coarsening in one space direction, to improve the convergence rate of the multigrid solver presented in [5] for solving the 2D steady Navier-Stokes in primitive variables when the aspect ratio of grid cells is not equal to 1, i.e., when $h_x/h_y \gg 1 \ {\rm or} \ll 1$, where $h_x$ is the grid step in $x$ direction and $h_y$ is the grid step in $y$ direction, $x$ and $y$ represent the Cartesian coordinates.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/1990-JCM-9422

Journal of Computational Mathematics, Vol. 8 (1990), Iss. 1 : pp. 92–98

Published online:    1990-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    7

Keywords:   

Author Details

Lin-Bo Zhang