A procedure is described for the calculation of heat transfer due to free convection flow along a vertical plate embedded in a porous medium with an arbitrarily varying surface temperature. By applying the appropriate coordinate transformations and the Merk series, the governing energy equation is expressed as a set of orindary differential equations. Numerical solutions are presented for these equations which represent universal functions and the surface gradients of these universal functions are tabulated. Several computational examples are provided and the results are compared with published data in the case of two examples.

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