The mixed convection plume along a vertical adiabatic surface embedded in a non-Darcian porous medium

Jiin Yuh Jang, Chuan Tzer Shiang

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17 Citations (Scopus)

Abstract

The mixed convection flow, from a line heat source embedded at the leading edge of an adiabatic vertical surface which is immersed in a non-Darcian porous medium, is numerically studied by employing an implicit finite difference Keller's box method. The non-Darcian effects of convective, inertia, and solid boundary are all considered. Both the buoyancy-assisting and buoyancy-opposing flow conditions have been investigated. The results are presented for the entire range of the mixed convection parameter ΛL = GrL/Re2L, a ratio of the buoyancy-force to the inertia-force, from the purely force convection (ΛL = 0) to the purely free convection (ΛL → ∞) regimes. It is shown that the non-Darcian effects decrease the peak velocities and increase the maximum temperatures. The criteria for the pure and mixed convection for a wall plume in porous media are established.

Original languageEnglish
Pages (from-to)1693-1699
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume40
Issue number7
DOIs
Publication statusPublished - 1997 May

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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