Abstract
The PEGASE 1.1 Navier-Stokes solver [[6]] was modified to perform two-dimensional large-eddy simulations of flow behind a backward-facing step at Re h = 11200 based on the step height. Special attention was focused on the spatial discretization of subgrid-scale model terms and on the treatment of the convective term. Simulations with Smagorinsky model, stochastic backscatter model [[7]] and dynamic model ([[5]], [[8]]) were carried out and results are compared to experimental measurements of Eaton and Johnston [[2]]. Sensitivity of the results to both subgrid scale models and numerical parameters is investigated. Discrepancies between experiments and results obtained with subgrid-scale models are analysed.
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Sagaut, P., Troff, B., Lê, T.H., Loc, T.P. (1994). Two-dimensional Simulations with Subgrid Scale Models for Separated Flow. In: Voke, P.R., Kleiser, L., Chollet, JP. (eds) Direct and Large-Eddy Simulation I. Fluid Mechanics and Its Applications, vol 26. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1000-6_10
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DOI: https://doi.org/10.1007/978-94-011-1000-6_10
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