Convection-dispersion transport

 Miscible displacement of a solute in soil solutions is simulated by the convection dispersion equation (CDE). For an absorptive, degradable, and transformable chemicals, the CDE may include terms of adsorption, degradation, and transformation (Nofziger et al., 1989; van Genuchten and Alves, 1982). For solute transport through a one-dimensional semi-infinite soil column with a constant initial concentration, and steady-state water flow, analytical solutions were developed for several boundary conditions by van Genuchten and Alves (1982). This program displays the analytical solutions in graphs. By changing the input parameters, a user can grasp the sensitivity of each parameter upon the transport process interactively.

Send email to david.nofziger@okstate.edu

Last Modified: January 16, 2008.