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It supports design and analysis of non-lightwater reactor systems in steady-state and transient conditions.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which solver types are included in the software?",{"text":117,"@type":113},"The plan includes deterministic radiation transport solvers for fixed source, k-eigenvalue, adjoint, and subcritical multiplication. It also includes transient solvers such as point-kinetics, improved quasistatic, and spatial dynamics.",{"name":119,"@type":110,"acceptedAnswer":120},"What reactor modeling capabilities are described for core and fuel?",{"text":121,"@type":113},"Core management includes core performance, fuel depletion and shuffling, equilibrium core calculations, pebble-bed run-in and equilibrium operations, and molten-salt delayed neutron precursor drift. 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Shemon1 and Javier Ortensi2 , Yaqi Wang2 , Vincent M. Labour2 , Zachary Prince2  \n1 Nuclear Science and Engineering Division, Argonne National Laboratory  \n2 Nuclear Science and Technology Division, Idaho National Laboratory  \nDISCLAIMER  \nThis information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. References herein to any specific commercial product, process, or service by trade name, trade mark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Government or any agency thereof.  \nANL/NSE-21/23 INL/EXT-21-63185  \nGriffin Software Development Plan  \nChangho Lee1 , Yeon Sang Jung1 , Hansol Park1 , Emily R. Shemon1 and Javier Ortensi2 , Yaqi Wang2 , Vincent M. Labour2 , Zachary Prince2  \n1 Nuclear Science and Engineering Division, Argonne National Laboratory  \n2 Nuclear Science and Technology Division, Idaho National Laboratory  \nJune 2021  \nArgonne National Laboratory  \nIdaho National Laboratory  \nPrepared for the  \nU.S. Department of Energy  \nOffice of Nuclear Energy  \nUnder UChicago Argonne, LLC  \nContract DE-AC02-06CH11357  \nUnder DOE Idaho Operations Office  \nContract DE-AC07-05ID14517  \nPage intentionally left blank  \nSUMMARY  \nGriffin is a MOOSE-based reactor physics application for advanced reactor multiphysics modeling and simulation. The application is developed in a consistent multiphysics environment with strong software quality assurance. Griffin inherited most of the capabilities of MAMMOTH/Rattlesnake and is adopting the capabilities from PROTEUS that are needed in the code. The toolset includes a variety of deterministic radiation transport solvers for fixed source, k-eigenvalue, adjoint, and subcritical multiplication, as well as transient solvers for point-kinetics, improved quasistatic, and spatial dynamics. The code contains the cross-section preparation capabilities applicable to fast and thermal reactors, including TRISO-fueled reactors. Core management capabilities include core performance, fuel depletion and shuffling, equilibrium core calculation, pebble-bed reactor run-in and equilibrium core, molten-salt reactor delayed neutron precursor drift, and control rod and drum movement with cusping correction. This software development plan presents the current and future capabilities and features in Griffin for the design and analysis of non-lightwater reactor systems in steady-state and transient conditions.  \nACKNOWLEDGEMENTS  \nThis work was supported by the Nuclear Energy Advanced Modeling and Simulation Program managed the U.S. Department of Energy, Office of Nuclear Energy. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes.  \nPage intentionally left blank  \nCONTENTS  \nSUMMARY ................................................................................................... iii  \nACKNOWLEDGMENT .................................................................................... iv  \n1 INTRODUCTION ....................................................................................... 1  \n2 RELEASE SCHEDULE ................................................................................. 2  \n3 FUNCTIONAL REQUIREMENTS FOR REACTOR PHYSICS .......","cbCaib6El4fbUItt","https://ap.wps.com/l/cbCaib6El4fbUItt","pdf",624869,62,"English","# SUMMARY\n# ACKNOWLEDGMENT\n# 1 INTRODUCTION\n# 2 RELEASE SCHEDULE\n# 3 FUNCTIONAL REQUIREMENTS FOR REACTOR PHYSICS\n## 3.1 General Requirements\n## 3.2 Reactor Type Specific Requirements\n# 4 NUCLEAR DATA\n## 4.1 Fast-Spectrum Reactor\n## 4.2 Thermal-Spectrum Reactor\n## 4.3 Equivalence Parameters\n## 4.4 Representation of Cross Sections and Equivalence Data\n## 4.5 Cross-Section Library Generation\n## 4.6 Tasks and Schedule\n# 5 GEOMETRY\n# 6 INPUT AND OUTPUT FILE STRUCTURE\n# 7 CALCULATION CAPABILITIES\n## 7.1 Transport Solvers\n## 7.2 Fuel Cycle Calculation","[{\"question\":\"What is Griffin and what is it used for?\",\"answer\":\"Griffin is a MOOSE-based reactor physics application for advanced multiphysics modeling and simulation. It supports design and analysis of non-lightwater reactor systems in steady-state and transient conditions.\"},{\"question\":\"Which solver types are included in the software?\",\"answer\":\"The plan includes deterministic radiation transport solvers for fixed source, k-eigenvalue, adjoint, and subcritical multiplication. It also includes transient solvers such as point-kinetics, improved quasistatic, and spatial dynamics.\"},{\"question\":\"What reactor modeling capabilities are described for core and fuel?\",\"answer\":\"Core management includes core performance, fuel depletion and shuffling, equilibrium core calculations, pebble-bed run-in and equilibrium operations, and molten-salt delayed neutron precursor drift. It also covers control rod and drum movement with cusping correction.\"}]","Griffin Software Development Plan - read online free | PDF",156]