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Title: Physics-based multiscale coupling for full core nuclear reactor simulation

Numerical simulation of nuclear reactors is a key technology in the quest for improvements in efficiency, safety, and reliability of both existing and future reactor designs. Historically, simulation of an entire reactor was accomplished by linking together multiple existing codes that each simulated a subset of the relevant multiphysics phenomena. Recent advances in the MOOSE (Multiphysics Object Oriented Simulation Environment) framework have enabled a new approach: multiple domain-specific applications, all built on the same software framework, are efficiently linked to create a cohesive application. This is accomplished with a flexible coupling capability that allows for a variety of different data exchanges to occur simultaneously on high performance parallel computational hardware. Examples based on the KAIST-3A benchmark core, as well as a simplified Westinghouse AP-1000 configuration, demonstrate the power of this new framework for tackling—in a coupled, multiscale manner—crucial reactor phenomena such as CRUD-induced power shift and fuel shuffle. 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-SA license
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  1. Idaho National Lab. (INL), Idaho Falls, ID (United States). Modeling and Simulation
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States). Reactor Physics Analysis and Design
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Nuclear Science and Engineering
  4. Idaho National Lab. (INL), Idaho Falls, ID (United States). Fuel Modeling and Simulation
  5. Idaho National Lab. (INL), Idaho Falls, ID (United States). Thermal Science and Safety Analysis
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0306-4549; PII: S030645491400543X; TRN: US1500496
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Annals of Nuclear Energy (Oxford)
Additional Journal Information:
Journal Name: Annals of Nuclear Energy (Oxford); Journal Volume: 84; Journal Issue: C; Journal ID: ISSN 0306-4549
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
73 NUCLEAR PHYSICS AND RADIATION PHYSICS Full core reactor simulation; Multiphysics coupling