DNS of premixed turbulent V-flame: coupling spectral and finite difference methods |
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Authors: | Raphael Hauguel Luc Vervisch Pascale Domingo |
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Affiliation: | Institut national des sciences appliquées de Rouen, UMR-CNRS-6614/CORIA, campus du Madrillet, avenue de l''université, BP 8, 76801 Saint Etienne du Rouvray cedex, France |
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Abstract: | To allow for a reliable examination of the interaction between velocity fluctuations, acoustics and combustion, a novel numerical procedure is discussed in which a spectral solution of the Navier–Stokes equations is directly associated to a high-order finite difference fully compressible DNS solver (sixth order PADE). Using this combination of high-order solvers with accurate boundary conditions, simulations have been performed where a turbulent premixed V-shape flame develops in grid turbulence. In the light of the DNS results, a sub-model for premixed turbulent combustion is analyzed. To cite this article: R. Hauguel et al., C. R. Mecanique 333 (2005). |
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Keywords: | Fluid mechanics Turbulent combustion Direct numerical simulation Mécanique des fluides Combustion turbulente Simulation numérique directe |
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