Abstract
Results are presented from a Direct Numerical Simulation (DNS) and Large-Eddy Simulations (LES) of turbulent flow over a backward-facing step (Re h =3300) with a fully developed channel flow (Rc τ=180) utilized asatime-dependent inflow condition. Numerical solutions using a fourth-order compact (Hermitian) scheme, which was formulated directly for anon-equidistant and staggered grid in [1] are compared with numerical solutions using the classical second-order central scheme. There sults from LES (using the dynamic subgrid scale model) are evaluated against a corresponding DNS reference data set (fourth-order solution).
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© 2002 Kluwer Academic Publishers
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Meri, A., Wengle, H. (2002). DNS and LES of Turbulent Backward-Facing Step Flow Using 2ND-and 4TH-Order Discretization. In: Friedrich, R., Rodi, W. (eds) Advances in LES of Complex Flows. Fluid Mechanics and Its Applications, vol 65. Springer, Dordrecht. https://doi.org/10.1007/0-306-48383-1_7
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DOI: https://doi.org/10.1007/0-306-48383-1_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-0486-5
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