A low-diffusion MUSCL scheme for LES on unstructured grids |
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Authors: | S. Camarri B. Koobus |
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Affiliation: | a Dipartimento di Ingegneria Aerospaziale, Università di Pisa, Via G. Caruso, 56122 Pisa, Italy b Département de Mathématiques, Université de Montpellier II, Place Eugène Bataillon, 34095 Montpellier Cedex, France c INRIA, 2004 Route des Lucioles, 06902 Sophia-Antipolis, France |
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Abstract: | We are interested in the development of large-eddy simulation (LES) methods for compressible flows in complex geometries. The starting point is a numerical scheme applicable to unstructured tetrahedrizations, conservative, upwind of MUSCL type and vertex centered. A low-diffusion version stabilized with sixth-order spatial derivatives is proposed. The obtained scheme is combined with two LES models, derived from the Smagorinsky model and its dynamic version. The basic test-case chosen is the flow around a square cylinder. Calculations around a forward-swept wing and a business jet are also presented. |
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