Heat transport through diffusive interfaces
The article of record as published may be found at http://dx.doi.org/10.1002/grl.50440 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...
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ftnavalpschool:oai:calhoun.nps.edu:10945/42113 2024-06-09T07:44:04+00:00 Heat transport through diffusive interfaces Flanagan, Jason D. Lefler, Angela S. Radko, Timour Oceanography 2013 application/pdf https://hdl.handle.net/10945/42113 unknown Geophysical Research Letters, Vol. 40, pp. 2466-2470, 2013 https://hdl.handle.net/10945/42113 This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. Article 2013 ftnavalpschool 2024-05-15T00:52:29Z The article of record as published may be found at http://dx.doi.org/10.1002/grl.50440 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 (Rr) but underestimate heat transport for low Rr. Finally, we examine the role of boundary conditions in controlling the vertical heat transport. Rigid boundaries—a necessary ingredient in laboratoryderived flux-laws—are shown to reduce the estimates of heat fluxes relative to the corresponding periodic boundary conditions. Article in Journal/Newspaper Arctic Arctic Ocean Naval Postgraduate School: Calhoun Arctic Arctic Ocean |
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Naval Postgraduate School: Calhoun |
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ftnavalpschool |
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unknown |
description |
The article of record as published may be found at http://dx.doi.org/10.1002/grl.50440 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 (Rr) but underestimate heat transport for low Rr. Finally, we examine the role of boundary conditions in controlling the vertical heat transport. Rigid boundaries—a necessary ingredient in laboratoryderived flux-laws—are shown to reduce the estimates of heat fluxes relative to the corresponding periodic boundary conditions. |
author2 |
Oceanography |
format |
Article in Journal/Newspaper |
author |
Flanagan, Jason D. Lefler, Angela S. Radko, Timour |
spellingShingle |
Flanagan, Jason D. Lefler, Angela S. Radko, Timour Heat transport through diffusive interfaces |
author_facet |
Flanagan, Jason D. Lefler, Angela S. Radko, Timour |
author_sort |
Flanagan, Jason D. |
title |
Heat transport through diffusive interfaces |
title_short |
Heat transport through diffusive interfaces |
title_full |
Heat transport through diffusive interfaces |
title_fullStr |
Heat transport through diffusive interfaces |
title_full_unstemmed |
Heat transport through diffusive interfaces |
title_sort |
heat transport through diffusive interfaces |
publishDate |
2013 |
url |
https://hdl.handle.net/10945/42113 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
Geophysical Research Letters, Vol. 40, pp. 2466-2470, 2013 https://hdl.handle.net/10945/42113 |
op_rights |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
_version_ |
1801372864663781376 |