Natural convection of microparticle suspensions in thin enclosures
Natural convection experiments were performed with aluminum oxide microparticle aqueous suspensions in thin enclosures of circular planform at angles of inclination to the horizontal of 90°, 30° and 0°. The average size of the aluminum oxide particles was about 250 nm, and volume fractions of 1.31%...
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| Veröffentlicht in: | International journal of heat and mass transfer 2008-03, Vol.51 (5), p.1332-1341 |
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| container_title | International journal of heat and mass transfer |
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| creator | Chang, B.H. Mills, A.F. Hernandez, E. |
| description | Natural convection experiments were performed with aluminum oxide microparticle aqueous suspensions in thin enclosures of circular planform at angles of inclination to the horizontal of 90°, 30° and 0°. The average size of the aluminum oxide particles was about 250
nm, and volume fractions of 1.31% and 2.72% were used. The aspect ratio varied from 50.7 to 10.9, and the maximum Raleigh number was 3
×
10
5. No effect of particles on the Nusselt number–Rayleigh number relation was found for the vertical enclosure at 90°. However at 30° and 0° (horizontal) there was a decrease in Nusselt number compared to pure water, which was pronounced at lower Rayleigh number and higher particle concentrations. This anomalous behavior is attributed to sedimentation. |
| doi_str_mv | 10.1016/j.ijheatmasstransfer.2007.11.030 |
| format | Article |
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nm, and volume fractions of 1.31% and 2.72% were used. The aspect ratio varied from 50.7 to 10.9, and the maximum Raleigh number was 3
×
10
5. No effect of particles on the Nusselt number–Rayleigh number relation was found for the vertical enclosure at 90°. However at 30° and 0° (horizontal) there was a decrease in Nusselt number compared to pure water, which was pronounced at lower Rayleigh number and higher particle concentrations. This anomalous behavior is attributed to sedimentation.</description><identifier>ISSN: 0017-9310</identifier><identifier>EISSN: 1879-2189</identifier><identifier>DOI: 10.1016/j.ijheatmasstransfer.2007.11.030</identifier><identifier>CODEN: IJHMAK</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Chemistry ; Colloidal state and disperse state ; Convective and constrained heat transfer ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; General and physical chemistry ; Heat transfer ; Microparticle ; Natural convection ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Physics ; Sedimentation ; Thermophoresis</subject><ispartof>International journal of heat and mass transfer, 2008-03, Vol.51 (5), p.1332-1341</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-7a51978b01467bf03f9e14fbd1747dad81050c62853ae6cd7685b6e53ed5adfd3</citedby><cites>FETCH-LOGICAL-c403t-7a51978b01467bf03f9e14fbd1747dad81050c62853ae6cd7685b6e53ed5adfd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0017931007007016$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20134374$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chang, B.H.</creatorcontrib><creatorcontrib>Mills, A.F.</creatorcontrib><creatorcontrib>Hernandez, E.</creatorcontrib><title>Natural convection of microparticle suspensions in thin enclosures</title><title>International journal of heat and mass transfer</title><description>Natural convection experiments were performed with aluminum oxide microparticle aqueous suspensions in thin enclosures of circular planform at angles of inclination to the horizontal of 90°, 30° and 0°. The average size of the aluminum oxide particles was about 250
nm, and volume fractions of 1.31% and 2.72% were used. The aspect ratio varied from 50.7 to 10.9, and the maximum Raleigh number was 3
×
10
5. No effect of particles on the Nusselt number–Rayleigh number relation was found for the vertical enclosure at 90°. However at 30° and 0° (horizontal) there was a decrease in Nusselt number compared to pure water, which was pronounced at lower Rayleigh number and higher particle concentrations. This anomalous behavior is attributed to sedimentation.</description><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Convective and constrained heat transfer</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>General and physical chemistry</subject><subject>Heat transfer</subject><subject>Microparticle</subject><subject>Natural convection</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Physics</subject><subject>Sedimentation</subject><subject>Thermophoresis</subject><issn>0017-9310</issn><issn>1879-2189</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkMFu2zAMhoWhBZZmewdfNvRil7Rsy76tDbZ2Q7Fe2rOgSBSqwLFT0Q7Qt6-CBL300gsJgh9-gp8QlwgFAjZXmyJsnslMW8M8RTOwp1iUAKpALEDCF7HAVnV5iW13JhYAqPJOInwVF8ybwwhVsxA3_800R9Nndhz2ZKcwDtnos22wcdyZOAXbU8Yz72jgtOMsDNn0nAoNth95jsTfxLk3PdP3U1-Kpz-_H1d3-f3D7d_V9X1uK5BTrkyNnWrXgFWj1h6k7wgrv3aoKuWMaxFqsE3Z1tJQY51q2nrdUC3J1cZ5J5fi5zF3F8eXmXjS28CW-t4MNM6sZVlLbMsygb-OYPqBOZLXuxi2Jr5qBH2Qpzf6ozx9kKcRdZKXIn6cbhm2pveJsYHfc0pAWUlVJe7fkaP0-D6kFLYhqSEXYrKp3Rg-f_QNwq-TIQ</recordid><startdate>20080301</startdate><enddate>20080301</enddate><creator>Chang, B.H.</creator><creator>Mills, A.F.</creator><creator>Hernandez, E.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20080301</creationdate><title>Natural convection of microparticle suspensions in thin enclosures</title><author>Chang, B.H. ; Mills, A.F. ; Hernandez, E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-7a51978b01467bf03f9e14fbd1747dad81050c62853ae6cd7685b6e53ed5adfd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Convective and constrained heat transfer</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>General and physical chemistry</topic><topic>Heat transfer</topic><topic>Microparticle</topic><topic>Natural convection</topic><topic>Physical and chemical studies. Granulometry. Electrokinetic phenomena</topic><topic>Physics</topic><topic>Sedimentation</topic><topic>Thermophoresis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chang, B.H.</creatorcontrib><creatorcontrib>Mills, A.F.</creatorcontrib><creatorcontrib>Hernandez, E.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>International journal of heat and mass transfer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, B.H.</au><au>Mills, A.F.</au><au>Hernandez, E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Natural convection of microparticle suspensions in thin enclosures</atitle><jtitle>International journal of heat and mass transfer</jtitle><date>2008-03-01</date><risdate>2008</risdate><volume>51</volume><issue>5</issue><spage>1332</spage><epage>1341</epage><pages>1332-1341</pages><issn>0017-9310</issn><eissn>1879-2189</eissn><coden>IJHMAK</coden><abstract>Natural convection experiments were performed with aluminum oxide microparticle aqueous suspensions in thin enclosures of circular planform at angles of inclination to the horizontal of 90°, 30° and 0°. The average size of the aluminum oxide particles was about 250
nm, and volume fractions of 1.31% and 2.72% were used. The aspect ratio varied from 50.7 to 10.9, and the maximum Raleigh number was 3
×
10
5. No effect of particles on the Nusselt number–Rayleigh number relation was found for the vertical enclosure at 90°. However at 30° and 0° (horizontal) there was a decrease in Nusselt number compared to pure water, which was pronounced at lower Rayleigh number and higher particle concentrations. This anomalous behavior is attributed to sedimentation.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijheatmasstransfer.2007.11.030</doi><tpages>10</tpages></addata></record> |
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| subjects | Chemistry Colloidal state and disperse state Convective and constrained heat transfer Exact sciences and technology Fundamental areas of phenomenology (including applications) General and physical chemistry Heat transfer Microparticle Natural convection Physical and chemical studies. Granulometry. Electrokinetic phenomena Physics Sedimentation Thermophoresis |
| title | Natural convection of microparticle suspensions in thin enclosures |
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