AREST: The Next Generation

by David W. Engel, Pacific Northwest Lab, Richland, United States,
B. Pete McGrail, Pacific Northwest Lab, Richland, United States,
Paul W. Eslinger, Pacific Northwest Lab, Richland, United States,
Marty K. Altenhofen, Pacific Northwest Lab, Richland, United States,



Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1993

Abstract: Simple mass transport models using constant boundary conditions at the waste form surface and at the host rock boundary do not always results in realistic predictions of the performance of an underground repository for the disposal of high-level radioactive waste. What is needed is a model that couples the important processes that can not be modeled independently, including (1) thermal modeling, 2) geochemical modeling, 3) containment degradation, 4) waste form dissolution, and 5) radionuclide transport, Such a model is being developed by modifying the AREST code.

Subject Headings: Thermal analysis | Chemical degradation | Mathematical models | Radioactive wastes | Waste disposal | Thermal effects | Waste containment | Recycling

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