Numerical computation of fluid flow and heat transfer in microchannels

K. C. Toh, X. Y. Chen, J. C. Chai

Research output: Contribution to journalArticle

218 Citations (Scopus)

Abstract

Three-dimensional fluid flow and heat transfer phenomena inside heated microchannels is investigated. The steady, laminar flow and heat transfer equations are solved using a finite-volume method. The numerical procedure is validated by comparing the predicted local thermal resistances with available experimental data. The friction factor is also predicted in this study. It was found that the heat input lowers the frictional losses, particularly at lower Reynolds numbers. At lower Reynolds numbers the temperature of the water increases, leading to a decrease in the viscosity and hence smaller frictional losses.

LanguageEnglish
Pages5133-5141
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume45
Issue number26
Early online date17 Sep 2002
DOIs
Publication statusPublished - Dec 2002
Externally publishedYes

Fingerprint

low Reynolds number
microchannels
Microchannels
fluid flow
Flow of fluids
Reynolds number
heat transfer
Heat transfer
friction factor
finite volume method
Finite volume method
thermal resistance
laminar flow
Laminar flow
Heat resistance
Viscosity
viscosity
Friction
heat
Water

Cite this

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abstract = "Three-dimensional fluid flow and heat transfer phenomena inside heated microchannels is investigated. The steady, laminar flow and heat transfer equations are solved using a finite-volume method. The numerical procedure is validated by comparing the predicted local thermal resistances with available experimental data. The friction factor is also predicted in this study. It was found that the heat input lowers the frictional losses, particularly at lower Reynolds numbers. At lower Reynolds numbers the temperature of the water increases, leading to a decrease in the viscosity and hence smaller frictional losses.",
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Numerical computation of fluid flow and heat transfer in microchannels. / Toh, K. C.; Chen, X. Y.; Chai, J. C.

In: International Journal of Heat and Mass Transfer, Vol. 45, No. 26, 12.2002, p. 5133-5141.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Numerical computation of fluid flow and heat transfer in microchannels

AU - Toh, K. C.

AU - Chen, X. Y.

AU - Chai, J. C.

PY - 2002/12

Y1 - 2002/12

N2 - Three-dimensional fluid flow and heat transfer phenomena inside heated microchannels is investigated. The steady, laminar flow and heat transfer equations are solved using a finite-volume method. The numerical procedure is validated by comparing the predicted local thermal resistances with available experimental data. The friction factor is also predicted in this study. It was found that the heat input lowers the frictional losses, particularly at lower Reynolds numbers. At lower Reynolds numbers the temperature of the water increases, leading to a decrease in the viscosity and hence smaller frictional losses.

AB - Three-dimensional fluid flow and heat transfer phenomena inside heated microchannels is investigated. The steady, laminar flow and heat transfer equations are solved using a finite-volume method. The numerical procedure is validated by comparing the predicted local thermal resistances with available experimental data. The friction factor is also predicted in this study. It was found that the heat input lowers the frictional losses, particularly at lower Reynolds numbers. At lower Reynolds numbers the temperature of the water increases, leading to a decrease in the viscosity and hence smaller frictional losses.

KW - Fluid flow and heat transfer

KW - Microchannels

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DO - 10.1016/S0017-9310(02)00223-5

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JO - International Journal of Heat and Mass Transfer

T2 - International Journal of Heat and Mass Transfer

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