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Title: THM-GTRF: New Spider meshes, New Hydra-TH runs

Abstract

Progress is reported on computational capabilities for the grid-to-rod-fretting (GTRF) problem of pressurized water reactors. Numeca's Hexpress/Hybrid mesh generator is demonstrated as an excellent alternative to generating computational meshes for complex flow geometries, such as in GTRF. Mesh assessment is carried out using standard industrial computational fluid dynamics practices. Hydra-TH, a simulation code developed at LANL for reactor thermal-hydraulics, is demonstrated on hybrid meshes, containing different element types. A series of new Hydra-TH calculations has been carried out collecting turbulence statistics. Preliminary results on the newly generated meshes are discussed; full analysis will be documented in the L3 milestone, THM.CFD.P5.05, Sept. 2012.

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:
1044124
Report Number(s):
LA-UR-12-22363
TRN: US1203337
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: CASL Virtual Round Table Meeting ; 2012-06-11 - 2012-06-14 ; Los Alamos, New Mexico, United States
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; COMPUTERIZED SIMULATION; FLUID MECHANICS; LANL; PWR TYPE REACTORS; SIMULATION; STATISTICS; THERMAL HYDRAULICS; TURBULENCE

Citation Formats

Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. THM-GTRF: New Spider meshes, New Hydra-TH runs. United States: N. p., 2012. Web.
Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., & Nourgaliev, Robert. THM-GTRF: New Spider meshes, New Hydra-TH runs. United States.
Bakosi, Jozsef, Christon, Mark A., Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. Wed . "THM-GTRF: New Spider meshes, New Hydra-TH runs". United States. https://www.osti.gov/servlets/purl/1044124.
@article{osti_1044124,
title = {THM-GTRF: New Spider meshes, New Hydra-TH runs},
author = {Bakosi, Jozsef and Christon, Mark A. and Francois, Marianne M. and Lowrie, Robert B. and Nourgaliev, Robert},
abstractNote = {Progress is reported on computational capabilities for the grid-to-rod-fretting (GTRF) problem of pressurized water reactors. Numeca's Hexpress/Hybrid mesh generator is demonstrated as an excellent alternative to generating computational meshes for complex flow geometries, such as in GTRF. Mesh assessment is carried out using standard industrial computational fluid dynamics practices. Hydra-TH, a simulation code developed at LANL for reactor thermal-hydraulics, is demonstrated on hybrid meshes, containing different element types. A series of new Hydra-TH calculations has been carried out collecting turbulence statistics. Preliminary results on the newly generated meshes are discussed; full analysis will be documented in the L3 milestone, THM.CFD.P5.05, Sept. 2012.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {6}
}

Conference:
Other availability
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