Journal of Porous Media

ISSN for PRINT: 1091-028X

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume10

M. A. EL-Hakiem
Mathematics Department, Aswan Faculty of Science, South Valley University, Aswan, Egypt

A.M. Rashad
South Valley University, Faculty of science, Aswan, Egypt

The effects of both radiation and the nonlinear Forchheimer terms on free convection from a vertical cylinder embedded in a fluid-saturated porous medium are examined. The fluid viscosity is assumed to vary as an inverse linear function of temperature. The boundary-layer equations governing flow are solved numerically by using the second-level local nonsimilarity method, which is used to convert the nonsimilar equations into a system of ordinary differential equations. Numerical results for dimensionless velocity, temperature profiles, and the local Nusselt number are presented for Ergun number Er, viscosity/temperature θ_r, conduction radiation parameter R_d, surface temperature excess ratio H, and transverse curvature parameter ξ.

DOI: 10.1615/JPorMedia.v10.i2.80 Download article, 209-218 pages

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