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Title: GTRF Calculations Using Hydra-TH (L3 Milestone THM.CFD.P5.05)

Abstract

This report describes the work carried out for completion of the Thermal Hydraulics Methods (THM) Level 3 Milestone THM.CFD.P5.05 for the Consortium for Advanced Simulation of Light Water Reactors (CASL). A series of body-fitted computational meshes have been generated by Numeca's Hexpress/Hybrid, a.k.a. 'Spider', meshing technology for the V5H 3 x 3 and 5 x 5 rod bundle geometries and subsequently used to compute the fluid dynamics of grid-to-rod fretting (GTRF). Spider is easy to use, fast, and automatically generates high-quality meshes for extremely complex geometries, required for the GTRF problem. Hydra-TH has been used to carry out large-eddy simulations on both 3 x 3 and 5 x 5 geometries, using different mesh resolutions. The results analyzed show good agreement with Star-CCM+ simulations and experimental data.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
DOE/LANL
OSTI Identifier:
1050493
Report Number(s):
LA-UR-12-24526
TRN: US1204705
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 97 MATHEMATICAL METHODS AND COMPUTING; FUEL ELEMENT CLUSTERS; LARGE-EDDY SIMULATION; SIMULATION; THERMAL HYDRAULICS; WATER

Citation Formats

Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. GTRF Calculations Using Hydra-TH (L3 Milestone THM.CFD.P5.05). United States: N. p., 2012. Web. doi:10.2172/1050493.
Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., & Nourgaliev, Robert. GTRF Calculations Using Hydra-TH (L3 Milestone THM.CFD.P5.05). United States. doi:10.2172/1050493.
Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. Wed . "GTRF Calculations Using Hydra-TH (L3 Milestone THM.CFD.P5.05)". United States. doi:10.2172/1050493. https://www.osti.gov/servlets/purl/1050493.
@article{osti_1050493,
title = {GTRF Calculations Using Hydra-TH (L3 Milestone THM.CFD.P5.05)},
author = {Bakosi, Jozsef and Christon, Mark A. and Francois, Marianne M. and Lowrie, Robert B. and Nourgaliev, Robert},
abstractNote = {This report describes the work carried out for completion of the Thermal Hydraulics Methods (THM) Level 3 Milestone THM.CFD.P5.05 for the Consortium for Advanced Simulation of Light Water Reactors (CASL). A series of body-fitted computational meshes have been generated by Numeca's Hexpress/Hybrid, a.k.a. 'Spider', meshing technology for the V5H 3 x 3 and 5 x 5 rod bundle geometries and subsequently used to compute the fluid dynamics of grid-to-rod fretting (GTRF). Spider is easy to use, fast, and automatically generates high-quality meshes for extremely complex geometries, required for the GTRF problem. Hydra-TH has been used to carry out large-eddy simulations on both 3 x 3 and 5 x 5 geometries, using different mesh resolutions. The results analyzed show good agreement with Star-CCM+ simulations and experimental data.},
doi = {10.2172/1050493},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {9}
}

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