%0 Journal Article
%A Zhou, M. J.
%A Lai, Feng C
%D 2002
%I Begell House
%N 2
%P 10
%R 10.1615/JPorMedia.v5.i2.30
%T Aiding and Opposing Mixed Convection from a Cylinder in a Saturated Porous Medium
%U http://dl.begellhouse.com/journals/49dcde6d4c0809db,766f585508beaf71,372c213c53adccd0.html
%V 5
%X Numerical solutions are presented for mixed convection from a cylinder embedded in a saturated porous medium. Both aiding and opposing flow conditions are considered. Numerical calculations using the finite difference method with body-fitted coordinates have covered a wide range of governing parameters (i.e., 10 Ј Re Ј 100, 0 Ј Gr Ј 400 and Pr = 0.7). The present results agree well with the previous study by Badr and Pop (1988) for flows at a small Reynolds number and a small mixed convection parameter Gr/Re. However, significant discrepancies have been found between the two studies for flows at a high Reynolds number and a high mixed convection parameter Gr/Re. In addition, oscillatory flows are observed for opposing flows at high Gr/Re, which were not revealed in the previous study (Badr and Pop, 1988). Several reasons are offered to explain the discrepancies found.
%8 2002-06-01