Abstract
A finite-volume based linear multigrid algorithm is proposed and used within an implicit linearized scheme to solve Navier–Stokes equations for compressible laminar flows. Coarse level problems are constructed algebraically based on convective and diffusive fluxes, without the knowledge of coarse geometry. Numerical results for complex 2D geometries such as airfoils, including stretched meshes, show mesh size independent convergence and efficiency of the method compared to other finite-volume-based multigrid method.
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Janka, A. A Flux Correction Multigrid for Compressible Flow. Numerical Algorithms 33, 319–330 (2003). https://doi.org/10.1023/A:1025536726786
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DOI: https://doi.org/10.1023/A:1025536726786