Analysis of streamwise conduction in forced convection of microchannels using fin approach

The effects induced by streamwise conduction on the thermal characteristics of forced convection for single-phase liquid flow in rectangular microchannel heat sinks under imposed constant wall temperature have been studied. By employing the fin approach in the first law of analysis, models with and...

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Main Authors: Muniandy, Suhandran, Hung, Yew Mun
Format: Article
Published: 2011
Subjects:
Online Access:http://shdl.mmu.edu.my/3364/
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author Muniandy, Suhandran
Hung, Yew Mun
author_facet Muniandy, Suhandran
Hung, Yew Mun
author_sort Muniandy, Suhandran
building MMU Institutional Repository
collection Online Access
description The effects induced by streamwise conduction on the thermal characteristics of forced convection for single-phase liquid flow in rectangular microchannel heat sinks under imposed constant wall temperature have been studied. By employing the fin approach in the first law of analysis, models with and without streamwise conduction term in the energy equation were developed for hydrodynamically and thermally fully-developed flow under local thermal non-equilibrium for the solid and fluid phases. These two models were solved to obtain closed form analytical solutions for the fluid and solid temperature distributions and the analysis emphasized details of the variations induced by the streamwise conduction on the fluid temperature distributions. The effects of the Peclet number, aspect ratio, and thermal conductivity ratio on the thermal characteristics of forced convection in microchannel heat sinks were analyzed and discussed. This study reveals the conditions under which the effect of streamwise conduction is significant and should not be neglected in the forced convective heat transfer analysis of microchannel heat sinks.
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spelling mmu-33642012-02-29T02:44:49Z http://shdl.mmu.edu.my/3364/ Analysis of streamwise conduction in forced convection of microchannels using fin approach Muniandy, Suhandran Hung, Yew Mun TA Engineering (General). Civil engineering (General) The effects induced by streamwise conduction on the thermal characteristics of forced convection for single-phase liquid flow in rectangular microchannel heat sinks under imposed constant wall temperature have been studied. By employing the fin approach in the first law of analysis, models with and without streamwise conduction term in the energy equation were developed for hydrodynamically and thermally fully-developed flow under local thermal non-equilibrium for the solid and fluid phases. These two models were solved to obtain closed form analytical solutions for the fluid and solid temperature distributions and the analysis emphasized details of the variations induced by the streamwise conduction on the fluid temperature distributions. The effects of the Peclet number, aspect ratio, and thermal conductivity ratio on the thermal characteristics of forced convection in microchannel heat sinks were analyzed and discussed. This study reveals the conditions under which the effect of streamwise conduction is significant and should not be neglected in the forced convective heat transfer analysis of microchannel heat sinks. 2011-09 Article PeerReviewed Muniandy, Suhandran and Hung, Yew Mun (2011) Analysis of streamwise conduction in forced convection of microchannels using fin approach. Journal of Zhejiang University SCIENCE A, 12 (9). pp. 655-664. ISSN 1673-565X http://dx.doi.org/10.1631/jzus.A1000289 doi:10.1631/jzus.A1000289 doi:10.1631/jzus.A1000289
spellingShingle TA Engineering (General). Civil engineering (General)
Muniandy, Suhandran
Hung, Yew Mun
Analysis of streamwise conduction in forced convection of microchannels using fin approach
title Analysis of streamwise conduction in forced convection of microchannels using fin approach
title_full Analysis of streamwise conduction in forced convection of microchannels using fin approach
title_fullStr Analysis of streamwise conduction in forced convection of microchannels using fin approach
title_full_unstemmed Analysis of streamwise conduction in forced convection of microchannels using fin approach
title_short Analysis of streamwise conduction in forced convection of microchannels using fin approach
title_sort analysis of streamwise conduction in forced convection of microchannels using fin approach
topic TA Engineering (General). Civil engineering (General)
url http://shdl.mmu.edu.my/3364/
http://shdl.mmu.edu.my/3364/
http://shdl.mmu.edu.my/3364/