RELATION BETWEEN TRANSPORT PARAMETERS OF CTRW AND ADE

Abstract

The continuous time random walk (CTRW) model, which is one of the method to evaluate contamination, has been noticed because it can describe the complex behavior of substances in heterogeneous porous media. However, how to determine its parameter values is not well understood. The purpose of this research is to relate the parameters of CTRW to the parameters used in ADE. We conducted numerical experiments and found that the flow rate, the retardation factor and the dispersion coefficient are respectively represented by Δx⁄Δt, <τ>, (Δx²⁄Δt)^β.