COMSOL-based Multiphysics Simulations to Support HFIR s Conversion to LEU Fuel

Conference · Sat Jan 01 04:00:00 EST 2011

OSTI ID:1026728

Jain, Prashant K ^[1]; Freels, James D ^[1]; Cook, David Howard ^[1]

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1. ORNL

In this paper, development of at least one form of the COMSOL-based modeling framework for the HFIR is presented, key simulation steps are identified and several milestones achieved towards a coupled multi-physics capability are highlighted. COMSOL-based multi-physics simulation capability is able to answer the need for predictive 3D simulations of HFIR s involute plate and channels. Step-by-step development and analyses of the COMSOL models for the single and multi-channels will lead towards the desired full-core simulation capability for the HFIR. With very few experiments planned to support the conversion process, these 3D simulations will become the basis for the nuclear safety analysis of the HFIR s LEU fuel core.

• Research Organization: Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor
• Sponsoring Organization: NNSA USDOE - National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1026728
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
COMPUTER CODES
COMPUTERIZED SIMULATION
COMSOL
HFIR
HFIR REACTOR
LEU Conversion
REACTOR CORES
REACTOR SAFETY
SAFETY ANALYSIS
SLIGHTLY ENRICHED URANIUM
THREE-DIMENSIONAL CALCULATIONS