کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6388027 1627746 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the modeling of wave-enhanced turbulence nearshore
ترجمه فارسی عنوان
در مدل سازی آشفتگی موج در نزدیکی دره
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
چکیده انگلیسی
A high resolution k-ω two-equation turbulence closure model, including surface wave forcing was employed to fully resolve turbulence dissipation rate profiles close to the ocean surface. Model results were compared with observations from Surface Wave Instrument Floats with Tracking (SWIFTs) in the nearshore region at New River Inlet, North Carolina USA, in June 2012. A sensitivity analysis for different physical parameters and wave and turbulence formulations was performed. The flux of turbulent kinetic energy (TKE) prescribed by wave dissipation from a numerical wave model was compared with the conventional prescription using the wind friction velocity. A surface roughness length of 0.6 times the significant wave height was proposed, and the flux of TKE was applied at a distance below the mean sea surface that is half of this roughness length. The wave enhanced layer had a total depth that is almost three times the significant wave height. In this layer the non-dimensionalized Terray scaling with power of −1.8 (instead of −2) was applicable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Modelling - Volume 103, July 2016, Pages 118-132
نویسندگان
, , , , ,