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Assessment of Prediction Capabilities of COCOSYS and CFX Code for Simplified Containment

Zhu, J.; Zhang, X.; Cheng, X. 1
1 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The acceptable accuracy for simulation of severe accident scenarios in containments of nuclear power plants is required to investigate the consequences of severe accidents and effectiveness of potential counter measures. For this purpose, the actual capability of CFX tool and COCOSYS code is assessed in prototypical geometries for simplified physical process-plume (due to a heat source) under adiabatic and convection boundary condition, respectively. Results of the comparison under adiabatic boundary condition show that good agreement is obtained among the analytical solution, COCOSYS prediction, and CFX prediction for zone temperature. The general trend of the temperature distribution along the vertical direction predicted by COCOSYS agrees with the CFX prediction except in dome, and this phenomenon is predicted well by CFX and failed to be reproduced by COCOSYS. Both COCOSYS and CFX indicate that there is no temperature stratification inside dome. CFX prediction shows that temperature stratification area occurs beneath the dome and away from the heat source. Temperature stratification area under adiabatic boundary condition is bigger than that under convection boundary condition. ... mehr


Volltext §
DOI: 10.5445/IR/1000057768
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Maschinenbau – Institut für Fusionstechnologie und Reaktortechnik (IFRT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 1687-6075
urn:nbn:de:swb:90-577685
KITopen-ID: 1000057768
Erschienen in Science and technology of nuclear installations
Verlag Hindawi
Band 2016
Seiten Art. Nr.: 9542121
Nachgewiesen in Dimensions
Scopus
Web of Science
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