Collocated finite volume schemes for the simulation of natural convective flows on unstructured meshes

Eric Chénier 1 Robert Eymard 2 R. Herbin 3 O. Touazi 2
1 TCM
LETEM - Laboratoire d'Etudes des Transferts d'Energie et de Matière
2 LETEM - Laboratoire d'Etudes des Transferts d'Energie et de Matière
3 LATP - Laboratoire d'Analyse, Topologie, Probabilités
Abstract : We describe here a collocated finite volume scheme which was recently developed for the numerical simulation of the incompressible Navier-Stokes equations on unstructured meshes, in 2 or 3 space dimensions. We recall its convergence in the case of the linear Stokes equations, and we prove a convergence theorem for the case of the Navier-Stokes equations under the Boussinesq hypothesis. We then present several numerical studies. A comparison between a cluster-type stabilization technique and the more classical Brezzi-Pitkäranta method is performed, the numerical convergence properties are presented on both analytical solutions and benchmark problems and the scheme is finally applied to the study of the natural convection between two eccentric cylinders
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Eric Chénier, Robert Eymard, R. Herbin, O. Touazi. Collocated finite volume schemes for the simulation of natural convective flows on unstructured meshes. International Journal for Numerical Methods in Fluids, Wiley, 2008, 56 (11), pp.2045--2068. ⟨10.1002/fld.1603⟩. ⟨hal-00723170⟩

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