Numerical computation of fluid flow and heat transfer in microchannels

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

Research output: Contribution to journalArticlepeer-review

271 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)5133-5141
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Issue number26
Early online date17 Sep 2002
Publication statusPublished - Dec 2002
Externally publishedYes


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