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Comparison of different coupling CFD-STH approaches for pre-test analysis of a TALL-3D experiment
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0001-5653-9206
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0002-0683-9136
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2015 (English)In: Nuclear Engineering and Design, ISSN 0029-5493, E-ISSN 1872-759X, Vol. 290, 135-143 p.Article in journal (Refereed) Published
Abstract [en]

The system thermal-hydraulic (STH) code ATHLET was coupled with the commercial 3D computational fluid dynamics (CFD) software package ANSYS CFX to improve ATHLET simulation capabilities for flows with pronounced 3D phenomena such as flow mixing and thermal stratification. Within the FP7 European project THINS (Thermal Hydraulics of Innovative Nuclear Systems), validation activities for coupled thermal-hydraulic codes are being carried out. The TALL-3D experimental facility, operated by KTH Royal Institute of Technology in Stockholm, is designed for thermal-hydraulic experiments with lead-bismuth eutectic (LBE) coolant at natural and forced circulation conditions. GRS carried out pre-test simulations with ATHLET-ANSYS CFX for the TALL-3D experiment T01, while KTH scientists perform these analyses with the coupled code RELAP5/STAR CCM+. In the experiment T01 the main circulation pump is stopped, which leads to interesting thermal-hydraulic transient with local 3D phenomena. In this paper, the TALL-3D behavior during T01 is analyzed and the results of the coupled pre-test calculations, performed by GRS (ATHLET-ANSYS CFX) and KTH (RELAP5/STAR CCM+) are directly compared.

Place, publisher, year, edition, pages
2015. Vol. 290, 135-143 p.
Keyword [en]
Codes (symbols), Computer software, Experiments, Hydraulics, Two phase flow, Experimental facilities, Forced circulations, Innovative nuclear system, Lead-bismuth eutectics, Royal Institute of Technology, Software package ANSYS, Thermal hydraulics, Thermal-hydraulic codes
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-165393DOI: 10.1016/j.nucengdes.2014.11.008OAI: diva2:808231

QC 20150708

Available from: 2015-04-27 Created: 2015-04-27 Last updated: 2015-07-08Bibliographically approved

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Jeltsov, MartiKööp, KasparKudinov, Pavel
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