| DOI: | 10.1002/grl.50440
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| 论文题名: | Heat transport through diffusive interfaces |
| 作者: | Flanagan J.D.; Lefler A.S.; Radko T.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8989
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| EISSN: | 1944-8720
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| 出版年: | 2013
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| 卷: | 40, 期:10 | | 起始页码: | 2466
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| 结束页码: | 2470
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| 语种: | 英语
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| 英文关键词: | diffusion and mixing processes
; Oceanography
; physical
; turbulence
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| Scopus关键词: | Large density ratio
; Mixing process
; Parameter range
; Periodic boundary conditions
; physical
; Rigid boundaries
; Thermohaline staircase
; Vertical fluxes
; Boundary conditions
; Oceanography
; Turbulence
; Heat transfer
; air-sea interaction
; boundary condition
; diffusion
; heat balance
; heat flux
; mixing
; numerical model
; thermohaline circulation
; three-dimensional modeling
; Arctic Ocean
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| 英文摘要: | We perform a series of 3-D Direct Numerical Simulations (DNS) to assess the vertical heat transport through thermohaline staircases in the Arctic Ocean. The diagnostics of DNS, performed for the first time in the realistic parameter range, result in vertical fluxes exceeding those of extant "four-thirds flux laws" by as much as a factor of 2 and suggest that the 4/3 exponent may require downward revision. Through a series of equivalent 2-D DNS, we show that they are consistent with their more resource-intensive 3-D counterparts for sufficiently large density ratio (Rρ) but underestimate heat transport for low Rρ. Finally, we examine the role of boundary conditions in controlling the vertical heat transport. Rigid boundaries - a necessary ingredient in laboratory-derived flux-laws - are shown to reduce the estimates of heat fluxes relative to the corresponding periodic boundary conditions. © 2013 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879958653&doi=10.1002%2fgrl.50440&partnerID=40&md5=0887c3d2868c34858905dc7dccb2f9a8
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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/6253
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Oceanography, Graduate School of Engineering and Applied Sciences, Naval Postgraduate School, Monterey, CA 93943, United States
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| Recommended Citation: | |
Flanagan J.D.,Lefler A.S.,Radko T.. Heat transport through diffusive interfaces[J]. Geophysical Research Letters,2013-01-01,40(10).
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