| DOI: | 10.1002/2016GL067812
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| 论文题名: | Strong turbulent mixing induced by internal bores interacting with internal tide-driven vertically sheared flow |
| 作者: | Masunaga E.; Fringer O.B.; Yamazaki H.; Amakasu K.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9321
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| EISSN: | 1944-9052
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| 出版年: | 2016
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| 卷: | 43, 期:5 | | 起始页码: | 2094
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| 结束页码: | 2101
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| 语种: | 英语
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| 英文关键词: | internal waves
; nonlinear internal bores
; turbulent mixing
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| Scopus关键词: | Computational fluid dynamics
; Energy dissipation
; Kinetic energy
; Kinetics
; Shock tubes
; Tides
; Turbulent flow
; Internal bore
; Internal waves
; Iribarren numbers
; Mixing mechanisms
; Numerical results
; Topographic slope
; Turbulent kinetic energy
; Turbulent mixing
; Mixing
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| 英文摘要: | We observed the formation of an internal bore interacting with the vertically sheared flow generated during the previous phase of the internal tide, which resulted in strong turbulent mixing. The rate of turbulent kinetic energy dissipation reached on the order of 10-5 W kg-1 during the event. Numerical simulations reproduced the observed interaction of internal bores with the sheared flow and verified the hypothesized breaking and mixing mechanism. The numerical results indicated that the Iribarren number, or the ratio of the topographic slope to the internal wave slope, plays a major role in the mixing intensity and types of internal bores. It was found that waves with low Iribarren numbers lead to bores that interact with vertically sheared flows induced by the previous phase of the internal tide and are more likely to produce strong wave breaking and mixing. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959916670&doi=10.1002%2f2016GL067812&partnerID=40&md5=9ee405a0db51c4e7ccac157a6557ed2d
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10284
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Ocean Sciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
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| Recommended Citation: | |
Masunaga E.,Fringer O.B.,Yamazaki H.,et al. Strong turbulent mixing induced by internal bores interacting with internal tide-driven vertically sheared flow[J]. Geophysical Research Letters,2016-01-01,43(5).
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