气候变化领域集成服务门户(CCPortal): On the Nature of the Turbulent Energy Dissipation Beneath Nonbreaking Waves

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DOI	10.1029/2020GL090138
	On the Nature of the Turbulent Energy Dissipation Beneath Nonbreaking Waves
	Bogucki D.J.; Haus B.K.; Barzegar M.; Shao M.; Domaradzki J.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Here we have determined the nature of turbulent flow associated with oceanic nonbreaking waves, which are on average much more prevalent than breaking waves in most wind conditions. We found this flow to be characterized by a low turbulence microscale Reynolds number of 30 < Reλ < 100. We observed that the turbulent kinetic energy dissipation rate associated with nonbreaking waves ϵ, ranged to 3 · 10−4 W/kg for a wave amplitude 50 cm. The ϵ, under nonbreaking waves, was consistent with (Formula presented.); Sij is the large-scale (energy-containing scales) wave-induced mean flow stress tensor. The turbulent Reynolds stress associated with nonbreaking waves was consistent with experimental data when parameterized by an amplitude independent constant turbulent eddy viscosity, 10 times larger than the molecular value. Given that nonbreaking waves typically cover a much larger fraction of the ocean surface (90–100%) than breaking waves, this result shows that their contribution to wave dissipation can be significant. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Kinetic energy; Kinetics; Reynolds number; Turbulent flow; Water waves; Amplitude independents; Mean flow stress; Non-breaking waves; Reynolds stress; Turbulent eddy viscosities; Turbulent energy dissipation; Turbulent kinetic energy; Wave dissipation; Energy dissipation; breaking wave; energy dissipation; experimental study; kinetic energy; parameterization; Reynolds number; turbulence; turbulent flow
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169682
作者单位	Department of Physical and Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX, United States; Rosenstiel School of Marine and Atmospheric Science, Department of Ocean Sciences, University of Miami, Miami, FL, United States; Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Bogucki D.J.,Haus B.K.,Barzegar M.,et al. On the Nature of the Turbulent Energy Dissipation Beneath Nonbreaking Waves[J],2020,47(19).
APA	Bogucki D.J.,Haus B.K.,Barzegar M.,Shao M.,&Domaradzki J.A..(2020).On the Nature of the Turbulent Energy Dissipation Beneath Nonbreaking Waves.Geophysical Research Letters,47(19).
MLA	Bogucki D.J.,et al."On the Nature of the Turbulent Energy Dissipation Beneath Nonbreaking Waves".Geophysical Research Letters 47.19(2020).