joseph.campbell (208) 526-7785 Joseph Campbell A U.S. ofEnergy Department For moreinformation National Laboratory @inl.gov Condor: • • Continued frompreviouspage sodium-cooled fastreactors. Nuclear Plantconceptsand reactors, NextGeneration could includelightwater analysis. Itsapplications for nuclearreactordesign/ of computationalmethods simulation totheforefront tor (ATR) modelingand INL’s Advanced Test Reac- project willhelpadvance tor systemscoolant. The energy transportofreac will simulatethemassand by RichardMartineau) contained inBighorn(led Bighorn: Thephysics Advanced Computing)ef entific Discoverythrough The Argonne SciDAC(Sci ductivity simulationtool. high-temperature supercon Laboratory) isaproposed (led by Argonne National Fuels Modeling andSimulationDepartment. ton leadstheComputational FrameworksGroupforINL’s early careerscienceandengineering professionals.Gas — thehighesthonorU.S. governmentbestowson dential EarlyCareer Award forScientists andEngineers mathematician was one of 96 recipients of the 2012 Presi receiving nationalrecognition. The INL computational Derek Gaston,wholeddevelopmentofMOOSE,is

This module NUCLEAR ENERGY 08-GA50044-40 R5-13 - - - - use inreactorpressurevesselsandothercomponents. The Grizzly codemodelsdegradationthatcanbuild upafteryears of ment andmeshgenerator ties, adaptivemeshrefine physics couplingcapabili MOOSE, withitsmulti the MOOSEframework. fort willbuildCondorusing - - - - - Pronghorn: • RAVEN: • Margin Characterization. form Risk-InformedSafety will useRELAP-7toper RAVEN softwaretoolalso systems analysistool. The premier reactorsafetyand Analysis Program,INL’s Reactor ExcursionandLeak newest versionofINL’s interface forRELAP-7,the Rabiti) willprovideauser ware tool(ledbyCristian ence problem. pressing computationalsci an idealplatformforthis scalability properties—is interface —andproven tors and light water reactors. prismatic gas-cooled reac ics for both pebble-bed and thermal fluids and neutron to conduct simulations of cept. It has now been used Temperature Reactor con pebble-bed Very High simulation of the gas-cooled was originally developed for mates simplified physics, tion, which rapidly approxi

The RAVEN soft-

This applica ------the timepreviously required. be devel advanced simulation toolsto Environ Object OrientedSimulation INL’s MOOSE(Multiphysics ­ment) enab ­oped inafractionof

The Energy of Innovation les MOOSE (Multiphysics Object Idaho National Laboratory’s phenomenon. scientists todescribeagiven ers workingforyearswith a teamofsoftwaredevelop ing taskbecauseitrequired has traditionallybeenadaunt useful simulationcapability branch ofscience.Buildinga practice innearlyevery M Fostering aherd ofmodelingapplications MOOSE SimulationEnvironment become standard simulation hasnow odeling and NUCLEAR ENERGY - - Oriented SimulationEnviron numerous applications that materials scientists todevelop — allowingnuclear fuelsand field ofnuclearengineering modeling, especiallyinthe has revolutionizedpredictive previously required. The tool oped inafractionofthetime simulation toolstobedevel scientists. MOOSEenables cessible toabroadarrayof and simulationmoreac ment) nowmakesmodeling - - - Continued nextpage embodied bythe model. the mathematicalequations In essence,MOOSEsolves MOOSE simulationplatform. “plug andplay”intothe an applicationthattheycan science cannowdevelop depth knowledgeofcomputer Scientists whodon’t havein- and accidentconditions. and materialsunderoperating predict thebehavioroffuels NUCLEAR ENERGY NUCLEAR ENERGY

by 28 domestic and foreign and Hai Huang) enables laboratories, universities and researchers to simulate the companies — a user commu- physics of these processes nity that’s growing monthly. with fine resolution while This success illustrates how also modeling an entire exceptional expertise and stra- geothermal reservoir. FAL- tegic partnerships converge CON is currently licensed at INL, the nation’s nuclear to research entities in the energy laboratory. U.S., Australia and New Listed here are some ex- Zealand.

amples of how MOOSE • RattleSNake: This radiation and the herd are addressing “SN transport” applica- numerous research questions tion (led by Yaqi Wang) (Capitalization practices vary could be used to design and by application, and all-caps study new nuclear fuels does not necessarily imply an with enhanced accident acronym). tolerance. The code models • BISON, MARMOT: BI- the behavior of neutrons SON (led by Richard Wil- in nuclear fuel and reac- liamson) is a thermo-me- tor cores, including INL’s chanical code that models Advanced Test Reactor. A nuclear fuel performance better understanding of this neutron transport physics The MOOSE development Continued from previous page tions describing phenomena at the engineering scale. team includes, from left, MARMOT (led by Michael can sharpen understanding (EPRI) models and supports build up after years of use The BISON code models in nuclear physics (BISON, nuclear fuel performance at Derek Gaston and Cody Tonks) models microscopic of factors that impact en- the Department of Energy’s in reactor pressure vessels Permann. Mike Tonks, right, Such a tool means scientists MARMOT), geology (FAL- the engineering scale. fuel changes during irradia- ergy generation and mate- Consortium for Advanced and other components. The led development of the fuel seeking a new simulation CON), chemistry (RAT) performance code MARMOT. tion. MOOSE can couple rial damage. Simulation of Light Water code is being developed capability don’t need to and engineering (RAVEN, the two applications to cre- • PEREGRINE: This Reactors (CASL) Innova- jointly with Oak Ridge Na- recruit a team of compu- Pronghorn). ate a powerful multiscale, offshoot of BISON was tion Hub. It was developed tional Lab and EPRI. Data tational experts versed in, The herd members are in parallel, 2D and 3D fuel designed specifically to in collaboration with EPRI, from Grizzly could help for example, parallel code various stages of develop- simulation capability that is model light water reactor Anatech Corp. and CASL. nuclear power plant owners development. Researchers ment ranging from recently truly predictive. This capa- fuel performance. It incor- • Grizzly: The code (de- understand the sources of can focus their efforts on the obtaining preliminary results bility was demonstrated by porates proprietary Electric veloped by Ben Spencer) change in safety margins mathematical models for their to being nationally recognized simulating the behavior of a Power Research Institute models degradation that can and inform decisions on field, and MOOSE does the as state-of-the-art. MOOSE highly resolved full-length component replacement and rest. The simplicity has bred and its herd of applications discrete-pellet fuel rod. The repair. a herd of modeling applica- are currently licensed for use The RattleS ake code models behavior of neutrons in nuclear fuel capability also was used N • RAT: The ReActive Trans- and reactor cores. to study the effects of a port code (developed by Lu- manufacturing fuel defect anjing Guo and Hai Huang) known as a “Missing Pellet can be used to study carbon Surface” — the first time dioxide sequestration or such behavior has been environmental remediation analyzed in 3D over the full of chemical spills. It solves life of a fuel rod. The MARMOT code models reactive transport problems microscopic changes in nuclear • FALCON: Enhanced Geo- in the earth’s subsurface to fuel during irradiation. thermal Systems require describe physical processes detailed understanding of fluid flow, solute trans- of subsurface processes, port, biogeochemical reac- primarily rock permeability. tions and media-solution The FALCON computer interactions. modeling code (developed by Robert Podgorney Continued next page