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Unstructured multigridding by volume agglomeration : current status

Abstract : We describe a multigrid method for solving the Euler equations applying to non-structured meshes in 2-D (triangles) and 3-D (tetrahedra). The main idea is to coarsen the given mesh by using topological neighboring relations. It is applied to upwind solvers relying on the MUSCL methodology. Two multigrid schemes are presented : an explicit Runge-Kutta FAS one and an implicit correction scheme. Transonic external flows computations are described for illustration.
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https://hal.inria.fr/inria-00075334
Contributor : Rapport de Recherche Inria <>
Submitted on : Wednesday, May 24, 2006 - 5:59:42 PM
Last modification on : Saturday, January 27, 2018 - 1:31:05 AM
Long-term archiving on: : Tuesday, April 12, 2011 - 10:38:04 PM

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  • HAL Id : inria-00075334, version 1

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Marie-Hélène Lallemand, Hervé Steve, Alain Dervieux. Unstructured multigridding by volume agglomeration : current status. [Research Report] RR-1224, INRIA. 1990. ⟨inria-00075334⟩

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