Increased accuracy of multiphysics simulations through flexible execution, transient algorithms, and modular physics
Alexander D. Lindsay, USDOE Office of Nuclear Energy (NE), Cody Permann, Roy Stogner, Logan H. Harbour, Guillaume L. Giudicelli, Guillaume L. Giudicelli · 2024
The MOOSE framework is a foundational capability used by the NEAMS program to create over 15 different simulation tools for advanced nuclear reactors.Due to MOOSE's broad use, improvements to the framework in support of modeling and simulation goals are critical to the program.Such improvements can take many forms, including optimization, improved user experience, streamlined application programming interfaces (APIs), parallelism, and new capabilities.The work described in this report was conducted in direct support of NEAMS tools and includes: multiple time integrators in the same input file, initial design of framework Components, an input file Application block, extension of NetGen to 3D geometries in MOOSE, and deployment of executors in the multi-system paradigm.These five additions are fundamental capabilities that will be leveraged by many NEAMS applications.iii