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Prediction of Complex Thermal-Hydraulic Phenomena Supplemented by Uncertainty Analysis with Advanced Multiscale Approaches for the TALL-3D T01 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.ORCID iD: 0000-0003-1213-0032
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2014 (English)In: Proceedings of the 12th International Probabilistic Safety Assessment and Management Conference (PSAM 12), Techno-Info Comprehensive Solutions (TICS) , 2014Conference paper, Published paper (Refereed)
Abstract [en]

The thermal-hydraulic (TH) system 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. No tests have been performed up to now. 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. Moreover, this work is supplemented by uncertainty and sensitivity analysis for the T01 experiment, carried out at the Technische Universitaet Muenchen.

Place, publisher, year, edition, pages
Techno-Info Comprehensive Solutions (TICS) , 2014.
Keyword [en]
Gen IV, Liquid metal flow, Phenomena modelling, Uncertainty and sensitivity analysis
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-165339Scopus ID: 2-s2.0-84925047635OAI: oai:DiVA.org:kth-165339DiVA: diva2:808064
Conference
12th International Probabilistic Safety Assessment and Management Conference, PSAM 2014, Sheraton Waikiki Honolulu, United States, 22 June 2014 through 27 June 2014
Note

QC 20150427

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

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Jeltsov, MartiKööp, KasparKudinov, Pavel

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