||Modeling Three-Dimensional Subsurface Flow, Fate and Transport of Microbes and Chemicals (3DFATMIC).
Cheng, J. R. ;
Yeh, G. T. ;
Short, T. E. ;
||Pennsylvania State Univ., University Park. Dept. of Civil and Environmental Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Ground water ;
Mathematical models ;
Transport theory ;
Fluid flow ;
Chemical reactions ;
Numerical analysis ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||A three-dimensional model simulating the subsurface flow, microbial growth and degradation, microbial-chemical reaction, and transport of microbes and chemicals has been developed. The model is designed to solve the coupled flow and transport equations. Basically, the saturated-unsaturated flow field is described by the well-known Richards' equation with variant hydraulic conductivity changing with microbial and chemical concentrations. Seven components, namely one substrate, two electron acceptors, one nutrient, and three types of microbes, might exist in subsurface systems and compose seven simultaneous advective-dispersive-reactive transport equations. Since numerical problems may be introduced by using the conventional finite element method, the modified Lagrangian-Eulerian numerical scheme with adapted zooming and peak capturing is applied to solving these seven nonlinear partial differential equations accurately.
||Pub. in Computational Methods in Water Resources X, v1 p217-224 1994. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK.
|NTIS Title Notes
||Reprint: Modeling Three-Dimensional Subsurface Flow, Fate and Transport of Microbes and Chemicals (3DFATMIC).
||PC A02/MF A01