Dynamic slip wall model for large-eddy simulation

A dynamic stochastic forcing method as a wall-layer model for large-eddy simulation

Turbulence-resolving simulations of wall-bounded flows at high Reynolds numbers are presently unattainable due to the need to resolve fully the energy-carrying eddies in the near-wall region. Hybrid Reynolds-averaged Navier–Stokes/large-eddy simulations (RANS/LES), in which the nearwall eddies are modelled in a Reynolds-averaged sense, provide a cost-saving alternative. However previous attempt...

Large - eddy simulation with dynamic SGS models 1 Large - eddy simulation with dynamic subgrid - scale modelsM

Diierent dynamic subgrid scale models, viz. the dynamic model of Germano et al. are evaluated by means of a priori tests. Direct numerical simulation data for fully-developed turbulent and transitional incompressible ows are used. Low correlation is obtained between exact and modeled subgrid scale stresses with the DSM. Conversely, good agreement is found for both the DMM and the DTM, since tho...

A dynamic global-coefficient subgrid-scale eddy-viscosity model for large-eddy simulation in complex geometries

Experimental study of wall boundary conditions for large-eddy simulation

IVAN MARUSIC, GARY J. KUNKEL and FERNANDO PORTÉ­AGEL Journal of Fluid Mechanics / Volume 446 / November 2001, pp 309 ­ 320 DOI: null, Published online: 23 October 2001 Link to this article: http://journals.cambridge.org/abstract_S0022112001005924 How to cite this article: IVAN MARUSIC, GARY J. KUNKEL and FERNANDO PORTÉ­AGEL (2001). Experimental study of wall boundary conditions for large...

Dynamic wall modeling for large-eddy simulation of complex turbulent flows

The efficacy of large-eddy simulation ~LES! with wall modeling for complex turbulent flows is assessed by considering turbulent boundary-layer flows past an asymmetric trailing-edge. Wall models based on turbulent boundary-layer equations and their simpler variants are employed to compute the instantaneous wall shear stress, which is used as approximate boundary conditions for the LES. It is de...