The application of a dynamic global-coefficient subgrid-scale eddy-viscosity model for large-eddy simulation in complex geometries is presented. The model employs a dynamic proce-dure for closure of the subgrid-scale eddy-viscosity model devel-oped by Vreman [Phys. Fluids 16, 3670 (2004)]. The model co-efficient which is globally constant in space but varies in time is dynamically determined assuming the "global equilibrium" be-tween the subgrid-scale dissipation and the viscous dissipation of which utilization was proposed by Park et al. [Phys. Fluids 18, 125109 (2006)]. Like the Vreman's model with a fixed coeffi-cient and the dynamic-coefficient model of Park et al., the present model predicts zero eddy-viscosity in regions where the vanish-ing eddy viscosity is theoretically expected. The present dynamic model is especially suitable for large-eddy simulation in com-plex geometries since it does not require any ad hoc spatial and temporal averaging or clipping of the model coefficient for nu-merical stabilization and requires only a single-level test filter.
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