| DOI: | 10.1002/2014GL059284
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| 论文题名: | Inhibition of oil plume dilution in Langmuir ocean circulation |
| 作者: | Yang D.; Chamecki M.; Meneveau C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10331
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| EISSN: | 1944-10062
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| 出版年: | 2014
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| 卷: | 41, 期:5 | | 起始页码: | 1632
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| 结束页码: | 1638
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| 语种: | 英语
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| 英文关键词: | Langmuir turbulence
; large eddy simulation
; oil plume modeling
; oil spill
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| Scopus关键词: | Buoyancy
; Drops
; Large eddy simulation
; Marine pollution
; Oil spills
; Turbulence
; Langmuir turbulence
; Non-dimensional parameters
; Ocean circulation
; Ocean mixed layers
; Ocean surfaces
; Physical parameters
; Plume model
; Quantitative measures
; Dilution
; blowout
; buoyancy
; diffusion
; dilution
; downwelling
; Langmuir circulation
; large eddy simulation
; mixed layer
; oil spill
; oil spill response
; Stokes formula
; turbulence
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| 英文摘要: | Oil spills from deep-water blowouts rise through and interact with the ocean mixed layer and Langmuir turbulence, leading to considerable diversity of oil slick dilution patterns observed on the ocean surface. Certain conditions can drive oil droplet plumes to organize into distinct bands called windrows, inhibiting oil dilution. Observations of blurred or even diffused plumes are also common, but conditions under which these various dilution regimes emerge are not well understood. Here we use large eddy simulations to explain and quantify the dilution patterns and their dependence on relevant physical parameters. Two mechanisms, the downwelling and dilution due to Langmuir cells and the inhibition of dilution due to buoyancy of oil droplets, compete. This competition can be characterized by the ratio of Stokes drift to droplet rise velocity - the drift-to-buoyancy parameter, Db. We find that plume appearance and quantitative measures of relative dilution depend mainly on Db. Key Points Applied high-fidelity LES to model oil dilution in ocean mixed layer Reproduced various observed oil dilution patterns, from fingered to diffused Introduced a non-dimensional parameter to characterize modes of oil dilution ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895081123&doi=10.1002%2f2014GL059284&partnerID=40&md5=14c1ac6e8a196c66b19620f857c8262c
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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/7595
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Center for Environmental and Applied Fluid Mechanics, Johns Hopkins University, Baltimore MD, United States
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| Recommended Citation: | |
Yang D.,Chamecki M.,Meneveau C.. Inhibition of oil plume dilution in Langmuir ocean circulation[J]. Geophysical Research Letters,2014-01-01,41(5).
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