Application of Generic Disposal System Models

Mariner, Paul¹  Hammond, Glenn Edward¹  Sevougian, S. David¹  Stein, Emily¹ 

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

关键词: RADIOACTIVE WASTES;    RADIONUCLIDE MIGRATION;    PARALLEL PROCESSING;    DISSOLUTION;    PRECIPITATION;    FLUID FLOW;    HEAT FLUX;    AQUIFERS;    DECAY;    SAMPLING;    SENSITIVITY ANALYSIS;    COMPUTERIZED SIMULATION;    UNDERGROUND DISPOSAL;    P CODES;    D CODES;   

DOI  :  10.2172/1226515
RP-ID  :  SAND--2015-10037R
PID  :  OSTI ID: 1226515
Others  :  Other: 608204
Others  :  TRN: US1500880

美国|英语

来源: SciTech Connect

【 摘 要 】

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.