Abstract
The results of a study of natural convection along an isothermal frustum of a wavy cone embedded in a fluid-saturated porous medium are presented. The boundary layer under consideration is concerned with the regime where the Darcy-Rayleigh number Ra is very large. It is assumed that the wavy surface has O(1) amplitude and wavelength. The boundary layer equations are solved numerically using the Keller-box method. Detailed results of the effect of the sinusoidal wavy surface on the wall heat flux are given.
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