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Numerical study of transient heat transfer in semitransparent porous medium

Author

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  • Ben Kheder, C.
  • Cherif, B.
  • Sifaoui, M.S.

Abstract

Transient solutions were obtained for heat transfer through a semitransparent porous medium placed in a flow passage and submitted to incident radiation. The one-dimensional physical model takes into account, conduction, convection and radiation simultaneously. The porous medium is assumed to be homogenous continuum, which absorbs, emits and scatters thermal radiation. A fully implicit time-marching algorithm was used to solve the nonlinear coupled energy equations for gas and porous medium numerically. The present study utilizes the differential–discrete–ordinate (DDO) method to account for the radiation contribution. The effects of the Reynolds number, optical depth, anisotropic scattering, conduction–radiation parameter and scattering albedo on temperatures and fluxes profiles are investigated.

Suggested Citation

  • Ben Kheder, C. & Cherif, B. & Sifaoui, M.S., 2002. "Numerical study of transient heat transfer in semitransparent porous medium," Renewable Energy, Elsevier, vol. 27(4), pages 543-560.
    • Handle: RePEc:eee:renene:v:27:y:2002:i:4:p:543-560
    DOI: 10.1016/S0960-1481(01)00171-9
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