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- W156850658 abstract "Abstract : A hybrid turbulence modeling approach combining unsteady Reynolds-averaged Navier-Stokes (URANS) equation-based modeling and large eddy simulation (LES) is applied to turbulent free-surface flows around surface-piercing bodies involving wave-breaking and bubble formation. Based on a two-equation kappa-epsilon turbulence model, the hybrid model reduces to a RANS turbulence model or a subgrid-scale turbulence model depending on the local mesh resolution (filter size) and the local integral turbulence length-scale. The computations were carried out using a second-order-accurate finite-volume Navier-Stokes solver that permits use of arbitrary unstructured meshes and local mesh refinement. Volume-of-fluid (VOF) method was employed to capture the free-surface. The URANS-LES hybrid approach is shown to reproduce the salient features of the turbulent free-surface flows around the surface-piercing bodies with reasonable accuracy on relatively coarse meshes on which the fidelity of LES degrades." @default.
- W156850658 created "2016-06-24" @default.
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- W156850658 date "2007-10-01" @default.
- W156850658 modified "2023-09-27" @default.
- W156850658 title "Evaluation of an URANS-LES Hybrid Approach for Turbulent Free Surface Flows Around Surface-Piercing Bodies" @default.
- W156850658 hasPublicationYear "2007" @default.
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