Unsteady Heat Transfer over a Porous Flat Plate
This Demonstration gives a numerical solution of the energy equation for the temperature distribution in viscous flow past a porous flat plate. The solution uses a finite-difference method.
The dimensionless transformed energy equation that describes the temperature field is
with the boundary conditions
and the initial condition
Here is Prandtl's number, is non-dimensional temperature, is dimensionless time, and is dimensionless position.
 R. S. Agarwal and M. Rani, "Numerical Solution of Unsteady Heat Transfer over a Porous Flat Plate," Indian Journal of Pure and Applied Mathematics, 16(6), 1985 pp. 647–659.