Effects of viscous dissipation on fully developed forced convection in porous media

Yew Mun Hung, C. P. Tso

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Abstract

An analytical study on fully developed forced convection in a homogeneous porous medium is presented. Closed form solutions for the temperature distributions in the transverse direction with the inclusion of frictional heating due to viscous dissipation are obtained, with variations of Darcy number and Brinkman number. The frictional heating effect on the temperature distributions is investigated and analyzed for both heating and cooling processes. Variations of Nusselt number as a function of Darcy number and Brinkman number are examined, and the deviations of the Nusselt numbers with that of the model without incorporating the effect of frictional heating are presented in a contour deviation map for a more holistic comparison.

Original languageEnglish
Pages (from-to)597-603
Number of pages7
JournalInternational Communications in Heat and Mass Transfer
Volume36
Issue number6
DOIs
Publication statusPublished - Jul 2009
Externally publishedYes

Keywords

  • Brinkman number
  • Forced convection
  • Frictional heating
  • Viscous dissipation

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