LES and hybrid RANS/LES of swirling flows with compression by using differential subgrid stress models

• Applicant: Professor Dr.-Ing. Suad Jakirlic
• Subject Area: Fluid Mechanics
• Term: from 2003 to 2012
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5470235

The proposed work aims at development of the subgrid stress model governed by the corresponding transport equation. Both the conventional LES as well as a novel hybrid RANS/LES procedure will be investigated. Particular attention will be devoted to the interface matching in the former case. The flow configurations under investigation are pertinent to combustor geometries, exhibiting wall-bounded and free separation regions. Furthermore, swirling flows subjected to compression caused by moving walls approaching each other will be considered. DNS data will be provided in this case, in order to calibrate the hybrid LES/RANS subgrid model.

• DFG Programme: Research Units
• Subproject of: FOR 507: Large Eddy Simulation (LES) of complex flows
• International Connection: France
• Participating Persons: Professor Dr. Jacques Borée; Professor Dr. Marc Buffat; Professor Dr. Éric Lamballais; Dr. Lionel Le Penven; Dr. Rémi Manceau; Professor Dr.-Ing. Cameron Tropea