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Article

Improved LES of turbulent channel flow by using OpenFOAM with the Explicit Algebraic SGS model

Authors: Montecchia, M.M., Brethouwer, G.B., Wallin, S.W., Johansson, A.V.J.
Document Type: Conference
Pubstate: Published
Journal: 12th ERCOFTAC Symp. on Engineering Turbulence Modeling and Measurements (ETMM12), Montpellier, France, September 26-28
Volume:   
Year: 2018

Abstract

Wall-resolved large-eddy simulation (LES) of turbulent channel flow is carried out using OpenFOAM with the Explicit Algebraic sub-grid scale model (EAM) by Marstorp et al. (J. Fluid Mech., 2009) and the Dynamic Smagorinsky model (DSM). Particular efforts have been made on an accurate and lowdiffusive implementation in the framework of a general purpose 2nd order finite volume CFD solver. The use of EAM improves the prediction and relaxes the resolution requirements for LES of moderately high Reynolds numbers in comparison with DSM. Results and conclusions are qualitatively consistent with previous results obtained by the use of a higher-order spectral solver.