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Fourth International Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2005, Marriot Hotel, Williamsburg, Virginia, USA

DOI: 10.1615/TSFP4

THE STRUCTURE OF TURBULENCE IN A SHALLOW WATER WIND-DRIVEN SHEAR CURRENT WITH LANGMUIR CIRCULATION

pages 349-354
DOI: 10.1615/TSFP4.590
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摘要

Large-eddy simulation (LES) of Langmuir circulation in a wind-driven shear current in shallow water is reported. After the introduction and a brief description of the governing equations and the numerical method, we focus on the major differences in the dynamics between wind shear-driven Couette flow and the same flow with Langmuir circulation. This comparison will rely on flow visualizations and diagnostics including mean velocity profiles, invariants of the resolved Reynolds stress anisotropy tensor and balances of the transport equations for resolved mean turbulent kinetic energy and resolved Reynolds stress tensor.

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