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Heat Transfer Research

Impact factor: 0.930

ISSN Print: 1064-2285
ISSN Online: 2162-6561

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v34.i7-8.80
7 pages

Heat and Fluid Flow within a Heterogeneous Porous Medium: Parallel Plate Channel with Isoflux Walls

A. A. Ranjbar-Kani
Mechanical Engineering Department, Faculty of Engineering, Mazandaran University, PO Box 484, Babol, Iran
A. A. Kantoory
Mechanical Engineering Department, Mazandaran University, Post Box 484, Babol, Iran
Kamel Hooman
Mechanical Engineering Department, Persian Gulf University, Bushehr 75168, Iran


The effects of variation of permeability and thermal conductivity (continuous in the transverse direction) on fully developed forced convection in a parallel plate channel filled with a saturated porous medium is investigated numerically on the basis of the Darcy or Dupuit-Forchheimer models. The case of isoflux boundary is considered. The present numerical solution has the required flexibility (unlike the previous asymptotic solutions in the open literature) to let us undertake any linear continuous variation. The results demonstrate that if the permeability near the walls is higher than its average it leads to an increase in the Nusselt number while similar variation in thermal conductivity leads to a decrease in the Nusselt number.