A perturbation procedure for the solution of the nonlinear diffusion equation is presented, which yields water content as a function of the distance to the wetting front. The result is in agreement with earlier predictions of wetting front position and sorptivity using an optimal technique.
No takes yet. Share an insight, caveat, or question.
Parlange et al. (1984) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: