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Title: Full core reactor analysis: Running Denovo on Jaguar

Abstract

Fully-consistent, full-core, 3D, deterministic neutron transport simulations using the orthogonal mesh code Denovo were run on the massively parallel computing architecture Jaguar XT5. Using energy and spatial parallelization schemes, Denovo was able to efficiently scale to more than 160 k processors. Cell-homogenized cross sections were used with step-characteristics, linear-discontinuous finite element, and trilinear-discontinuous finite element spatial methods. It was determined that using the finite element methods gave considerably more accurate eigenvalue solutions for large-aspect ratio meshes than using step-characteristics. (authors)

Authors:
; ; ;  [1]
  1. Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831 (United States)
Publication Date:
Research Org.:
American Nuclear Society, Inc., 555 N. Kensington Avenue, La Grange Park, Illinois 60526 (United States)
OSTI Identifier:
22105848
Resource Type:
Conference
Resource Relation:
Conference: PHYSOR 2012: Conference on Advances in Reactor Physics - Linking Research, Industry, and Education, Knoxville, TN (United States), 15-20 Apr 2012; Other Information: Country of input: France; 7 refs.
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICAL METHODS AND COMPUTING; 22 GENERAL STUDIES OF NUCLEAR REACTORS; ASPECT RATIO; COMPUTER ARCHITECTURE; COMPUTER GRAPHICS; COMPUTERIZED SIMULATION; CROSS SECTIONS; D CODES; EIGENFUNCTIONS; EIGENVALUES; FINITE ELEMENT METHOD; NEUTRON TRANSPORT; REACTOR CORES; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

Jarrell, J. J., Godfrey, A. T., Evans, T. M., and Davidson, G. G. Full core reactor analysis: Running Denovo on Jaguar. United States: N. p., 2012. Web.
Jarrell, J. J., Godfrey, A. T., Evans, T. M., & Davidson, G. G. Full core reactor analysis: Running Denovo on Jaguar. United States.
Jarrell, J. J., Godfrey, A. T., Evans, T. M., and Davidson, G. G. Sun . "Full core reactor analysis: Running Denovo on Jaguar". United States.
@article{osti_22105848,
title = {Full core reactor analysis: Running Denovo on Jaguar},
author = {Jarrell, J. J. and Godfrey, A. T. and Evans, T. M. and Davidson, G. G.},
abstractNote = {Fully-consistent, full-core, 3D, deterministic neutron transport simulations using the orthogonal mesh code Denovo were run on the massively parallel computing architecture Jaguar XT5. Using energy and spatial parallelization schemes, Denovo was able to efficiently scale to more than 160 k processors. Cell-homogenized cross sections were used with step-characteristics, linear-discontinuous finite element, and trilinear-discontinuous finite element spatial methods. It was determined that using the finite element methods gave considerably more accurate eigenvalue solutions for large-aspect ratio meshes than using step-characteristics. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
Other availability
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