Hybrid Large Eddy Simulation/Filtered Density Function Approaches: Mass Consistency Issues and Mixing Models Prospects
Hybrid large eddy simulation/filtered density function (LES/FDF) approaches used for studying chemically reacting flows with detailed chemistry are discussed. Although they offer several advantages, LES/FDF methods require closure models for the mixing process representing the FDF transport owing to molecular diffusion. Accordingly, techniques utilized for ensuring a mass consistent coupling between LES and FDF are firstly emphasized. Main limitations of current mixing models are highlighted next. Avenues that can be further explored to develop a mixing model presenting all desirable characteristics are finally discussed. Developing a sound mixing model will remove the largest source of modeling uncertainty in FDF-based computations.
Autor(es):CELIS, Cesar
FIGUEIRA DA SILVA, Luis Fernando
Año: 2019
Título de la revista: 17th International Conference on Numerical Combustion
Ciudad: Aachen, Germany