LES and RANS simulation of wind- and wave-forced oceanic turbulent boundary layers in shallow water with wall modeling

Roozbeh Golshan,Andres Tejada-Martinez,Mario Juha,Yuri Bazilevs

Computers & Fluids（2017）

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摘要

•LES and RANS of wind-wave forced boundary layers in a shallow ocean are presented.•Wind-wave forced turbulence is characterized by Langmuir circulation (LC).•Wall modeling based on weak enforcement of BCs is developed for RANS.•RANS wall model predicts accurate log-law disruption caused by LC.•Near-wall modeling in LES facilitates simulations of LC with expanded domains.

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关键词

Langmuir turbulence,Langmuir circulation,Wall modeling,Residual-based variational multiscale (RBVMS) method,Isogeometric analysis (IGA),Non-uniform rational B-splines (NURBS)

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