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Title: A fully-implicit high-order system thermal-hydraulics model for advanced non-LWR safety analyses

An advanced system analysis tool is being developed for advanced reactor safety analysis. This paper describes the underlying physics and numerical models used in the code, including the governing equations, the stabilization schemes, the high-order spatial and temporal discretization schemes, and the Jacobian Free Newton Krylov solution method. The effects of the spatial and temporal discretization schemes are investigated. Additionally, a series of verification test problems are presented to confirm the high-order schemes. Furthermore, it is demonstrated that the developed system thermal-hydraulics model can be strictly verified with the theoretical convergence rates, and that it performs very well for a wide range of flow problems with high accuracy, efficiency, and minimal numerical diffusions.
Authors:
 [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Annals of Nuclear Energy (Oxford)
Additional Journal Information:
Journal Name: Annals of Nuclear Energy (Oxford); Journal Volume: 101; Journal Issue: C; Journal ID: ISSN 0306-4549
Publisher:
Elsevier
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE), Nuclear Energy Advanced Modeling and Simulation (NEAMS)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FEM; fully-implicit; high-order; system thermal-hydraulics
OSTI Identifier:
1372270

Hu, Rui. A fully-implicit high-order system thermal-hydraulics model for advanced non-LWR safety analyses. United States: N. p., Web. doi:10.1016/j.anucene.2016.11.004.
Hu, Rui. A fully-implicit high-order system thermal-hydraulics model for advanced non-LWR safety analyses. United States. doi:10.1016/j.anucene.2016.11.004.
Hu, Rui. 2016. "A fully-implicit high-order system thermal-hydraulics model for advanced non-LWR safety analyses". United States. doi:10.1016/j.anucene.2016.11.004. https://www.osti.gov/servlets/purl/1372270.
@article{osti_1372270,
title = {A fully-implicit high-order system thermal-hydraulics model for advanced non-LWR safety analyses},
author = {Hu, Rui},
abstractNote = {An advanced system analysis tool is being developed for advanced reactor safety analysis. This paper describes the underlying physics and numerical models used in the code, including the governing equations, the stabilization schemes, the high-order spatial and temporal discretization schemes, and the Jacobian Free Newton Krylov solution method. The effects of the spatial and temporal discretization schemes are investigated. Additionally, a series of verification test problems are presented to confirm the high-order schemes. Furthermore, it is demonstrated that the developed system thermal-hydraulics model can be strictly verified with the theoretical convergence rates, and that it performs very well for a wide range of flow problems with high accuracy, efficiency, and minimal numerical diffusions.},
doi = {10.1016/j.anucene.2016.11.004},
journal = {Annals of Nuclear Energy (Oxford)},
number = C,
volume = 101,
place = {United States},
year = {2016},
month = {11}
}