Convection over a naturally permeable bed

Abstract

The temperature distribution for a poiseuille flow over a naturally permeable bed is presented for the two cases, conducting and insulating upper plate. It is found that, the temperature distribution increases linearly in the case of insulating wall, whereas, it is parabolic in nature, in case of conducting wall. It is also found that, the Nusselt number increases steadily up to the value of σ = 2 and it is uniform for σ > 2; where σ = h/√ k. h is the distance between the upper plate and the permeable bed and k is the permeability of the bed.