Abstract
A turbulence closure, based on transport equations for the turbulence kinetic energy, k, its dissipation rate, ε and the undamped eddy viscosity, R, is presented. The model, which is free of topography-dependent parameters, combines a k-ε closure with the Rt model so that no inflow turbulence decay occurs in external flows, an attribute often sought by aeronautical engineers using CFD for flow computations. The model is shown to revert to the k-ε closure in near-wall flow regions. Two aerodynamic flow cases are presented, comparing the original k-ε closure to the current 3-equation model.
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