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Hybrid Viscous Layer Insertion in a Tetrahedral Mesh

Vialaneix, Guillaume, Yvan Fournier, and Tamy Boubekeur

Research Notes, 21st International Meshing Roundtable, Springer-Verlag, pp.Research Note, October 7-10 2012


21st International Meshing Roundtable
San Jose, CA
October 7-10, 2012

Telecom ParisTech

Computational Fluid Dynamics (CFD) methods for viscous computations often require high quality computational meshes. The viscous layer area needs to be meshed at a high resolution, leading to highly anisotropic meshes. The methodology developed in this article addresses this issue, enabling the creation of a viscous layer in a tetrahedral (or hybrid polyhedral) mesh, so that the inner meshing is preserved while the viscous layer area is correctly meshed. It uses a surfacic clustering process, followed by the combination of the deletion of a layer of cells and the generation of new ones through the projection of the remaining surface faces onto the original surface.

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