A PARALLEL MULTIPHASE NUMERICAL MODEL
FOR SUBSURFACE CONTAMINANT TRANSPORT
WITH BIODEGRADATION KINETICS

TODD ARBOGAST, CLINT N. DAWSON, and MARY F. WHEELER

Abstract:
We discuss the formulation of a simulator in three spatial
dimensions for two phase groundwater flow and transport with biodegradation
kinetics that has been developed at Rice University for massively 
parallel, distributed memory, message passing machines. 
The numerical procedures employed are a fully implicit mixed
finite element method for flow and a characteristics-mixed method for
transport and reactions of dissolved chemical species in groundwater.
Domain decomposition solvers have been employed for solving the
systems of equations resulting from the discretization of the model.
Results from applying this simulator to a bioremediation field problem 
using a recirculation well in an air-water system are discussed.