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Article: Natural convection in enclosures with partially thermally active side walls containing internal heat sources

TitleNatural convection in enclosures with partially thermally active side walls containing internal heat sources
Authors
Issue Date2008
PublisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phf
Citation
Physics Of Fluids, 2008, v. 20 n. 9 How to Cite?
Abstract
Unsteady laminar natural convection in an enclosure with partially thermally active side walls and internal heat generation is studied numerically. Thermally inactive parts of the side walls and horizontal walls are thermally insulated. The governing equations are solved using the control volume method with a power law scheme. Nine different combinations of the hot and cold thermally active zones are considered. The effects of heat generations, aspect ratios, different Prandtl numbers, and locations of the thermally active part of the side walls on the flow pattern (streamlines), heat distribution (isotherms), midheight velocity, and rate of heat transfer from the walls of the enclosure are presented. It is observed that the heat transfer rate increases with increasing the Grashof number due to an increase in buoyancy force and decreases with an increase in heat generation. The heat transfer is found to be the maximum when the hot and cold thermally active locations are placed at the middle of the side walls. © 2008 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/58993
ISSN
2013 Impact Factor: 2.040
ISI Accession Number ID
References

 

Author Affiliations
  1. Bharathiar University
  2. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorKandaswamy, Pen_HK
dc.contributor.authorNithyadevi, Nen_HK
dc.contributor.authorNg, COen_HK
dc.date.accessioned2010-05-31T03:41:03Z-
dc.date.available2010-05-31T03:41:03Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysics Of Fluids, 2008, v. 20 n. 9en_HK
dc.identifier.issn1070-6631en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58993-
dc.description.abstractUnsteady laminar natural convection in an enclosure with partially thermally active side walls and internal heat generation is studied numerically. Thermally inactive parts of the side walls and horizontal walls are thermally insulated. The governing equations are solved using the control volume method with a power law scheme. Nine different combinations of the hot and cold thermally active zones are considered. The effects of heat generations, aspect ratios, different Prandtl numbers, and locations of the thermally active part of the side walls on the flow pattern (streamlines), heat distribution (isotherms), midheight velocity, and rate of heat transfer from the walls of the enclosure are presented. It is observed that the heat transfer rate increases with increasing the Grashof number due to an increase in buoyancy force and decreases with an increase in heat generation. The heat transfer is found to be the maximum when the hot and cold thermally active locations are placed at the middle of the side walls. © 2008 American Institute of Physics.en_HK
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phfen_HK
dc.relation.ispartofPhysics of Fluidsen_HK
dc.rightsPhysics of Fluids. Copyright © American Institute of Physics.en_HK
dc.titleNatural convection in enclosures with partially thermally active side walls containing internal heat sourcesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1070-6631&volume=20&issue=9&spage=097104&epage=&date=2008&atitle=Natural+convection+in+enclosures+with+partially+thermally+active+side+walls+containing+internal+heat+sourcesen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.2981834en_HK
dc.identifier.scopuseid_2-s2.0-53549127575en_HK
dc.identifier.hkuros152415en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-53549127575&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue9en_HK
dc.identifier.isiWOS:000260030300047-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKandaswamy, P=6603739083en_HK
dc.identifier.scopusauthoridNithyadevi, N=14831586900en_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK

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