Transport model user's manual

Abstract

S . W. A h l s t r o mR. G. B a c a W a t e r and L a n d R e s o u r c e s D e p a r t m e n t T h i s r e p o r t i s based on w o r k sponsored by t h e A t l a n t i c R i c h f i e l d H a n f o r d C o m p a n y under U n i t e d S t a t e s A t o m i c E n e r g y C o m m i s s i o n C o n t r a c t A T ( 4 5 -1 ) -2 1 3 0

Preliminary study of radioactive waste disposal in the vadose zone

“…Thn objective of the model is to assess movement of groundwater in the unsaturated 2one, The model involves the solution of the basic two-dimensional equation of flow in the unsaturated region (Reisenauer, 1972) . "A transport model (Baca et d., 1973;Ahlstrom and Baca, 1974) has been developed for use with the PST and VTT Models for predicting movement and distribution of contaminants in groundwater systems. Based on the two-dimen sional form of the general diffusion-convection equation, the model considers variable dispersion coefficients, variable media thickness and sin!…”