Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Consistent hybrid LES-FDF simulation of turbulent reactive flows

Venkatramanan Raman*, Heinz Pitsch
Center for Turbulence Research, Stanford University, Stanford, CA 94305, USA

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A hybrid large-eddy simulation/filtered-density function (LES-FDF) scheme is devised and implemented for the simulation of turbulent reactive flows. A robust validation criteria is specified in terms of the moments of the FDF transport equation. By using redundant quantities in the different components of the hybrid-solver, a consistency condition is specified. For the current joint-composition FDF-based method, the density field is used as the redundant field. The consistency criteria is tested using a complex bluff-body stabilized flame.

Keywords:  Combustion; Turbulent flow; Large-eddy simulation; Filtered-density function; Monte-Carlo scheme;Hybrid approach

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