Application of Generic Disposal System Models

Technical Report · Sun Nov 01 04:00:00 EST 2015

DOI:https://doi.org/10.2172/1226515· OSTI ID:1226515

Mariner, Paul ^[1]; Hammond, Glenn Edward ^[1]; Sevougian, S. David ^[1]; Stein, Emily ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

This report describes specific GDSA activities in fiscal year 2015 (FY2015) toward the development of the enhanced disposal system modeling and analysis capability for geologic disposal of nuclear waste. The GDSA framework employs the PFLOTRAN thermal-hydrologic-chemical multi-physics code (Hammond et al., 2011) and the Dakota uncertainty sampling and propagation code (Adams et al., 2013). Each code is designed for massively-parallel processing in a high-performance computing (HPC) environment. Multi-physics representations in PFLOTRAN are used to simulate various coupled processes including heat flow, fluid flow, waste dissolution, radionuclide release, radionuclide decay and ingrowth, precipitation and dissolution of secondary phases, and radionuclide transport through the engineered barriers and natural geologic barriers to a well location in an overlying or underlying aquifer. Dakota is used to generate sets of representative realizations and to analyze parameter sensitivity.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories, Las Vegas, NV (United States))
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1226515
• Report Number(s): SAND--2015-10037R; 608204
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
97 MATHEMATICS AND COMPUTING
AQUIFERS
COMPUTERIZED SIMULATION
D CODES
DECAY
DISSOLUTION
FLUID FLOW
HEAT FLUX
P CODES
PARALLEL PROCESSING
PRECIPITATION
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
SAMPLING
SENSITIVITY ANALYSIS
UNDERGROUND DISPOSAL