Wall-Modeled Large-Eddy Simulation for Complex Turbulent Flows
-
Sanjeeb T. Bose [2] ; George Ilhwan Park [1]
-
[1] University of Pennsylvania
University of Pennsylvania
City of Philadelphia, Estados Unidos
-
[2] Cascade Technologies, Inc., Palo Alto, California, Estados Unidos e Institute for Computational and Mathematical Engineering, Stanford University, Stanford, California, Estados Unidos
-
- Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 50, 2018, págs. 535-561
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
-
Resumen
Large-eddy simulation (LES) has proven to be a computationally tractable approach to simulate unsteady turbulent flows. However, prohibitive resolution requirements induced by near-wall eddies in high–Reynolds number boundary layers necessitate the use of wall models or approximate wall boundary conditions. We review recent investigations in wall-modeled LES, including the development of novel approximate boundary conditions and the application of wall models to complex flows (e.g., boundary-layer separation, shock/boundary-layer interactions, transition). We also assess the validity of underlying assumptions in wall-model derivations to elucidate the accuracy of these investigations, and offer suggestions for future studies.
