Abstract: The propagation of flood waves in rivers is governed by the Saint Venant equations. Under certain simplifying assumptions, these nonlinear equations have been solved numerically via computationally intensive, specialized ...

Abstract: A general methodology to develop dispersion models in three-dimensional heterogeneous aquifers under nonstationary conditions is presented. Under this procedure, fundamental hydrologic processes influencing chemical ...

Abstract: This article presents a procedure to simulate groundwater flow subject to a nonlinear moving boundary resulting from periodic recharge and significant vertical hydraulic gradients. Under these conditions the Dupuit assumptions ...

Abstract: Here, the author expands on the results of the paper “Explicit Solution to Green and Ampt Infiltration Equation” by Serrano published in 2001. Specifically, new simple expressions are given for the cumulative infiltration ...

Abstract: Using approximate analytical solutions of the nonlinear Richard’s equation, simple models for the simulation of water content, pressure head, hydraulic head, and infiltration rate profiles, subject to either constant ...

Abstract: An explicit solution of the Green and Ampt infiltration equation is presented by constructing a decomposition series. Simple expressions for the cumulative infiltration depth and the infiltration rate are proposed. These ...

Abstract: A new approximate analytical solution to the nonlinear kinematic wave equation is proposed. The solution has been derived by combining an implicit solution obtained with the method of characteristics with analytical ...