Hybrid Two Level and Large-Eddy Simulation of Wall Bounded Turbulent Flows
ADVANCES IN TURBULENCE XI(2007)
摘要
A novel approach to model high-Re wall-bounded flows is developed based on coupling the outer flow large-eddy simulation (LES) approach to a near-wall two-level simulation (TLS) approach. Here, the near-wall small-scale field is simulated rather than modeled. Simulations of turbulent channel flows, boundary layer and flow around a surface mounted hill demonstrate the ability of this model for capturing the turbulent flow behavior using very coarse grids.
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关键词
turbulent flow,large eddy simulation
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