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Numerical study of fluid flow and heat transfer in microchannel heat sinks using anisotropic porous media approximation

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dc.citedby5
dc.contributor.authorLim F.Y.en_US
dc.contributor.authorAbdullah S.en_US
dc.contributor.authorAhmad I.en_US
dc.contributor.authorid55939046900en_US
dc.contributor.authorid57202960891en_US
dc.contributor.authorid12792216600en_US
dc.date.accessioned2023-12-29T07:51:47Z
dc.date.available2023-12-29T07:51:47Z
dc.date.issued2010
dc.description.abstractIn the present analysis, a microchannel heat sinks configuration was simulated by modelling the stacked microchannel heat sinks in a macroscopic scale as if it is a fluid saturated porous medium. The numerical solutions were obtained using the Brinkman and the general heat transfer based formulation. In order to accurately predict the permeability and heat transfer of the stacked microchannels, the simulations were compared with the simulation of a single microchannel heat sink assuming incompressible flow. The advantage of the proposed method is that no assumption on the laminar or fully develop nature of the flow is required. Therefore, this approach can also be used for developing flows in the channel. The important entrance effect which was neglected by previous researchers was also considered in the current simulation. Besides that, in the simulation of large microchannels stack, the proposed method reduce the computing time by approximately one order of magnitude when compared to the conventional approach of simulating individual microchannels. The extended works of the verified porous-media-like-microchannels were combined to be part of a computational domain of a CFD simulation. In the simulations, two cases were conducted under the same pump and the same pressure drops limitations. Good agreements were found with the simulations with discrepancy of 0.25-0.38%. The results were compared with numerical solutions and experimental results from the past reports. The fluid flow and thermal performance of microchannel heat sinks were well predicted with less than 5% discrepancy. � 2010 Asian Network for Scientific Information.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.3923/jas.2010.2047.2057
dc.identifier.epage2057
dc.identifier.issue18
dc.identifier.scopus2-s2.0-77954828035
dc.identifier.spage2047
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77954828035&doi=10.3923%2fjas.2010.2047.2057&partnerID=40&md5=dbde57638711e52a03b09fb02a0a8724
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30716
dc.identifier.volume10
dc.pagecount10
dc.publisherAsian Network for Scientific Informationen_US
dc.sourceScopus
dc.sourcetitleJournal of Applied Sciences
dc.subjectHeat sinks
dc.subjectHeat transfer
dc.subjectMicrochannel
dc.subjectPorous media
dc.subjectThermal management
dc.subjectAnisotropic media
dc.subjectComputational fluid dynamics
dc.subjectFlow of fluids
dc.subjectHeat sinks
dc.subjectHeat transfer
dc.subjectIncompressible flow
dc.subjectPorous materials
dc.subjectTemperature control
dc.subjectAnisotropic porous media
dc.subjectComputational domains
dc.subjectConventional approach
dc.subjectFluid flow and heat transfers
dc.subjectFluid-saturated porous medium
dc.subjectMicro channel heat sinks
dc.subjectSingle microchannel
dc.subjectThermal Performance
dc.subjectMicrochannels
dc.titleNumerical study of fluid flow and heat transfer in microchannel heat sinks using anisotropic porous media approximationen_US
dc.typeArticleen_US
dspace.entity.typePublication
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