Results are given from a study in which models used in large-eddy simulation of turbulent flow are tested using results of exact simulations of the Navier-Stokes equations. The results to date are for models of the eddy-viscosity type applied to incompressible homogeneous turbulence (either isotropic or in the presence of applied irrotational plane strain). The comparisons are by means of correlation coefficients; model parameters are calculated by matching the r.m.s. magnitudes of the exact and modeled quantities. Effects on these correlation coefficients and model parameters are shown for variations in attributes of the large-eddy simulation (e.g., filter type and width, differencing method) as well as in parameters of the flow simulated (e.g., Reynolds number, strain rate). (DePo)
Direct testing of subgrid-scale models
Direkte Erprobung nicht massstabsgerechter Flugzeugmodelle
AIAA-Papers ; Jan ; 1-9
1979
9 Seiten, 9 Bilder, 3 Tabellen, 13 Quellen
Conference paper
English
Direct Testing of Subgrid-Scale Models
AIAA | 1979
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