Author(s)

Gour-Tsyh Yeh and Karen M. Salvage

Abstract

Numerous issues need to be addressed before mechanistic-based reactive chemical transport modeling can justifiably replace the widely employed "ad hoc" reactive contaminant transport modeling. The most important issues among others are: (1) mathematical formulation to use "true" chemical transport velocities (retarded velocities) rather than fluid velocities in computations, (2) algorithm development to circumvent numerical problems specifically associated with reactive transport, and (3) reaction pathway identification to obtain theoretical rate laws. The use of fluid velocity to transport chemical species generates incorrect moving fronts. There are special requirements of numerical algorithms

Keywords