Friday, March 26

Scale Dependent Model Concepts for Isothermal and Non-Isothermal Multiphase Processes in Heterogeneous Porous Media

9:15 AM-10:00 AM
Room: Texas Ballroom B
Chair: Johannes J. Westerink, University of Notre Dame

Contamination of soils and groundwater from volatile organic compounds (VOC's), such as organic solvents and hydrocarbon fuels, is a problem at many industrial facilities. Key to the characterization of surface contamination conditions and to the design and implementation of effective remediation strategies is an understanding of the physical, chemical, and biological processes on different scales that affect the behavior of contaminants in the subsurface environment. Based on the character of the available data, we need a corresponding model concept and an effective numerical simulator that correctly represents the physical processes.

In the first part of the talk, the speaker will discuss how scale and system dependent processes and parameters are incorporated into a conceptual model. Next, he will present a robust and effective numerical algorithm for representing the aforementioned concepts will be presented. Finally, he will provide two examples involving a three-phase, three-component model for the remediation process of heat injection and the scale dependence of model parameters will be provided.

Rainer Helmig
Institut for Computer Applications
Technical University of Braunschweig, Germany

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MMD, 11/19/98