Global ETD Search
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Showing 1 to 3 of 3 for “"hybrid RANS-LES models"”.
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A qualitative assessment and optimization of URANS modelling for unsteady cavitating flows
… is characterized by the formation of vapor bubbles when the pressure in a working fluid drops sharply below the vapor pressure. These bubbles, upon exiting the low-pressure region burst emanating tremendous amounts of energy. Unsteady cavitating flows have been influential in several aspects …
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Wall-models for large eddy simulation based on a generic additive-filter formulation
… approaches are addressed by deriving the exact hybrid RANS/LES Navier-Stokes equations. These equations are derived by introducing an additive-filter, which linearly combines the RANS and LES operators with a blending function. The equations derived predict additional hybrid terms, which …
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Turbulence Modelling for Complex Flows in Turbomachinery
… the underlying physics of this complex flow, the RANS turbulence closure models and a hybrid RANS-LES method are developed and extended. The improved RANS and hybrid RANS-LES models are shown to be able to predict the corner separation flows with significantly improved accuracy, and are expected …