Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates
Direct numerical simulations of pressure-driven flow between two infinite horizontal plates with a stabilizing temperature difference imposed on the plates are presented, for different Grashof numbers. A thermocline-like solution is obtained. The thermocline decorrelates velocity fluctuations which...
Gespeichert in:
| Veröffentlicht in: | Physics of fluids (1994) 2005-07, Vol.17 (7), p.075109-075109-8 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 075109-8 |
|---|---|
| container_issue | 7 |
| container_start_page | 075109 |
| container_title | Physics of fluids (1994) |
| container_volume | 17 |
| creator | Moestam, Robert Davidson, Lars |
| description | Direct numerical simulations of pressure-driven flow between two infinite horizontal plates with a stabilizing temperature difference imposed on the plates are presented, for different Grashof numbers. A thermocline-like solution is obtained. The thermocline decorrelates velocity fluctuations which results in a high mean flow velocity. Temperature fluctuations decorrelate from the vertical velocity fluctuations and it is found that although
⟨
T
′
2
⟩
and
⟨
υ
′
2
⟩
increase with Grashof number,
⟨
υ
′
T
′
⟩
decreases. It is argued from the simulations that this behavior is due to internal gravity waves. It is also found that the demands on the size of the computational box increase with Grashof number. |
| doi_str_mv | 10.1063/1.1920648 |
| format | Article |
| fullrecord | <record><control><sourceid>scitation_cross</sourceid><recordid>TN_cdi_scitation_primary_10_1063_1_1920648Numerical_simulation</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>scitation_primary_10_1063_1_1920648</sourcerecordid><originalsourceid>FETCH-LOGICAL-c384t-b40c4d5477df30e2bee14e732cb24f41ea9d27b13f1b4f608e3d16af6c4058113</originalsourceid><addsrcrecordid>eNp9kE1LwzAYgIMoOKcH_0EuHhQ68zZZ2l4EGX7B0IueS5q-cZGuKUm3ob_ezA13kHnKB8_7wPsQcg5sBEzyaxhBkTIp8gMyAJYXSSalPFzfM5ZIyeGYnITwwRjjRSoH5P15MUdvtWposPNFo3rr2kCdoYr2M_RzpxvbIrVt_Og8hrDwmNTeLrGlpnErWmG_wvjoVy5Sxra2Rzpz3n65to_aLjoxnJIjo5qAZ9tzSN7u714nj8n05eFpcjtNNM9Fn1SCaVGPRZbVhjNMK0QQmPFUV6kwAlAVdZpVwA1UwkiWI69BKiO1YOMcgA_J5carvQvBoyk7b-fKf5bAynWhEsptochebNhOhRjAeNVqG3YDGWPAChG5mw0XtO1_Au2X_uYsdzmj4GqfYOn8brjs4tb_wH9X-Aaue5lK</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates</title><source>AIP Journals Complete</source><source>AIP Digital Archive</source><creator>Moestam, Robert ; Davidson, Lars</creator><creatorcontrib>Moestam, Robert ; Davidson, Lars</creatorcontrib><description>Direct numerical simulations of pressure-driven flow between two infinite horizontal plates with a stabilizing temperature difference imposed on the plates are presented, for different Grashof numbers. A thermocline-like solution is obtained. The thermocline decorrelates velocity fluctuations which results in a high mean flow velocity. Temperature fluctuations decorrelate from the vertical velocity fluctuations and it is found that although
⟨
T
′
2
⟩
and
⟨
υ
′
2
⟩
increase with Grashof number,
⟨
υ
′
T
′
⟩
decreases. It is argued from the simulations that this behavior is due to internal gravity waves. It is also found that the demands on the size of the computational box increase with Grashof number.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/1.1920648</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville, NY: American Institute of Physics</publisher><subject>Convection and heat transfer ; Exact sciences and technology ; Flows in ducts, channels, nozzles, and conduits ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; Physics ; Turbulent flows, convection, and heat transfer</subject><ispartof>Physics of fluids (1994), 2005-07, Vol.17 (7), p.075109-075109-8</ispartof><rights>American Institute of Physics</rights><rights>2005 American Institute of Physics</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-b40c4d5477df30e2bee14e732cb24f41ea9d27b13f1b4f608e3d16af6c4058113</citedby><cites>FETCH-LOGICAL-c384t-b40c4d5477df30e2bee14e732cb24f41ea9d27b13f1b4f608e3d16af6c4058113</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,790,1553,4498,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17001094$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Moestam, Robert</creatorcontrib><creatorcontrib>Davidson, Lars</creatorcontrib><title>Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates</title><title>Physics of fluids (1994)</title><description>Direct numerical simulations of pressure-driven flow between two infinite horizontal plates with a stabilizing temperature difference imposed on the plates are presented, for different Grashof numbers. A thermocline-like solution is obtained. The thermocline decorrelates velocity fluctuations which results in a high mean flow velocity. Temperature fluctuations decorrelate from the vertical velocity fluctuations and it is found that although
⟨
T
′
2
⟩
and
⟨
υ
′
2
⟩
increase with Grashof number,
⟨
υ
′
T
′
⟩
decreases. It is argued from the simulations that this behavior is due to internal gravity waves. It is also found that the demands on the size of the computational box increase with Grashof number.</description><subject>Convection and heat transfer</subject><subject>Exact sciences and technology</subject><subject>Flows in ducts, channels, nozzles, and conduits</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Physics</subject><subject>Turbulent flows, convection, and heat transfer</subject><issn>1070-6631</issn><issn>1089-7666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LwzAYgIMoOKcH_0EuHhQ68zZZ2l4EGX7B0IueS5q-cZGuKUm3ob_ezA13kHnKB8_7wPsQcg5sBEzyaxhBkTIp8gMyAJYXSSalPFzfM5ZIyeGYnITwwRjjRSoH5P15MUdvtWposPNFo3rr2kCdoYr2M_RzpxvbIrVt_Og8hrDwmNTeLrGlpnErWmG_wvjoVy5Sxra2Rzpz3n65to_aLjoxnJIjo5qAZ9tzSN7u714nj8n05eFpcjtNNM9Fn1SCaVGPRZbVhjNMK0QQmPFUV6kwAlAVdZpVwA1UwkiWI69BKiO1YOMcgA_J5carvQvBoyk7b-fKf5bAynWhEsptochebNhOhRjAeNVqG3YDGWPAChG5mw0XtO1_Au2X_uYsdzmj4GqfYOn8brjs4tb_wH9X-Aaue5lK</recordid><startdate>20050701</startdate><enddate>20050701</enddate><creator>Moestam, Robert</creator><creator>Davidson, Lars</creator><general>American Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20050701</creationdate><title>Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates</title><author>Moestam, Robert ; Davidson, Lars</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-b40c4d5477df30e2bee14e732cb24f41ea9d27b13f1b4f608e3d16af6c4058113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Convection and heat transfer</topic><topic>Exact sciences and technology</topic><topic>Flows in ducts, channels, nozzles, and conduits</topic><topic>Fluid dynamics</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Physics</topic><topic>Turbulent flows, convection, and heat transfer</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moestam, Robert</creatorcontrib><creatorcontrib>Davidson, Lars</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Physics of fluids (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Moestam, Robert</au><au>Davidson, Lars</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates</atitle><jtitle>Physics of fluids (1994)</jtitle><date>2005-07-01</date><risdate>2005</risdate><volume>17</volume><issue>7</issue><spage>075109</spage><epage>075109-8</epage><pages>075109-075109-8</pages><issn>1070-6631</issn><eissn>1089-7666</eissn><coden>PHFLE6</coden><abstract>Direct numerical simulations of pressure-driven flow between two infinite horizontal plates with a stabilizing temperature difference imposed on the plates are presented, for different Grashof numbers. A thermocline-like solution is obtained. The thermocline decorrelates velocity fluctuations which results in a high mean flow velocity. Temperature fluctuations decorrelate from the vertical velocity fluctuations and it is found that although
⟨
T
′
2
⟩
and
⟨
υ
′
2
⟩
increase with Grashof number,
⟨
υ
′
T
′
⟩
decreases. It is argued from the simulations that this behavior is due to internal gravity waves. It is also found that the demands on the size of the computational box increase with Grashof number.</abstract><cop>Melville, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.1920648</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1070-6631 |
| ispartof | Physics of fluids (1994), 2005-07, Vol.17 (7), p.075109-075109-8 |
| issn | 1070-6631 1089-7666 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_1920648Numerical_simulation |
| source | AIP Journals Complete; AIP Digital Archive |
| subjects | Convection and heat transfer Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fundamental areas of phenomenology (including applications) Physics Turbulent flows, convection, and heat transfer |
| title | Numerical simulations of a thermocline in a pressure-driven flow between two infinite horizontal plates |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T17%3A37%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-scitation_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Numerical%20simulations%20of%20a%20thermocline%20in%20a%20pressure-driven%20flow%20between%20two%20infinite%20horizontal%20plates&rft.jtitle=Physics%20of%20fluids%20(1994)&rft.au=Moestam,%20Robert&rft.date=2005-07-01&rft.volume=17&rft.issue=7&rft.spage=075109&rft.epage=075109-8&rft.pages=075109-075109-8&rft.issn=1070-6631&rft.eissn=1089-7666&rft.coden=PHFLE6&rft_id=info:doi/10.1063/1.1920648&rft_dat=%3Cscitation_cross%3Escitation_primary_10_1063_1_1920648%3C/scitation_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |