NEAMS Advanced Reactor Model Contributions to the NRIC Virtual Test Bed

Abstract

The U.S. Department of Energy (DOE) Office of Nuclear Energy's Advanced Modeling and Simulation (NEAMS) Program develops models of advanced reactor phenomena to demonstrate code applicability to challenging physics problems, drive code development through user assessment, and perform code verification and validation. Meanwhile, the U.S. DOE's National Reactor Innovation Center (NRIC) hosts an open-source website and associated GitHub repository called the Virtual Test Bed (VTB) on which computational models for advanced reactors are documented and shared with the reactor community.Several NEAMS advanced reactor models (including input files, documentation, and discussion of results) have recently been contributed to the NRIC VTB. The open sharing of these models benefits the reactor community by providing "best practice" examples using NEAMS tools for advanced reactor physics problems. This report summarizes and provides links to these new models, which include modeling phenomena important to liquid metal cooled fast reactors, molten salt reactors, high temperature gas-cooled reactors, and microreactors. This document is an overview report of NEAMS activities that have recently contributed to the VTB. Details of individual work done by the modeling teams have been or will be published in separate reports.

High-fidelity multiphysics load following and accidental transient modeling of microreactors using NEAMS tools: Application of NEAMS codes to perform multiphysics modeling analyses of micro-reactor concepts

“…This work was completed under NRIC VTB funding but leveraged the NEAMS-funded GC-MR assembly model by extending it to an additional transient of interest by the industry, namely a Reactivity Insertion Accident (RIA). Thus, a short description is provided here for record keeping of NEAMS model, and more information is available in [27].…”