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Numerical prediction of void distribution in two-phase turbulent flow in a subchannel / Tsutomu Ikeno in Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 132 N° 11 (Novembre 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of engineering for gas turbines and power > Vol. 132 N° 11 (Novembre 2010) . - 07 p. Titre : Numerical prediction of void distribution in two-phase turbulent flow in a subchannel Type de document : texte imprimé Auteurs : Tsutomu Ikeno, Auteur ; Tatsuya Sasakawa, Auteur ; Isao Kataoka, Auteur Année de publication : 2011 Article en page(s) : 07 p. Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Atmospheric  turbulence  Boltzmann  equation  Finite  volume  methods  Fission  reactors  Numerical  analysis  Poisson  equation Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Numerical simulation code for predicting void distribution in two-phase turbulent flow in a subchannel was developed. The purpose is to obtain a profile of void distribution in the subchannel. The result will be used for predicting a heat flux at departure from nucleate boiling in a rod-bundle for the pressurized water reactor (PWR). The fundamental equations were represented by a generalized transport equation and the transport equation was transformed onto the generalized coordinate system fitted to the rod surface and the symmetric lines in the subchannel. Using the finite-volume method the transport equation was discretized for the SIMPLE algorithm. The flow field and void fraction at the steady-state were calculated for different average void fractions. The computational result for atmospheric pressure condition was successfully compared with experimental data. Sensitivity analysis for the PWR condition was performed, and the result showed that the secondary flow slightly contributed to homogenizing the void distribution. DEWEY : 620.1 ISSN : 0742-4795 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JETPEZ00013 [...] [article] Numerical prediction of void distribution in two-phase turbulent flow in a subchannel [texte imprimé] / Tsutomu Ikeno, Auteur ; Tatsuya Sasakawa, Auteur ; Isao Kataoka, Auteur . - 2011 . - 07 p. Génie Mécanique Langues : Anglais (eng) in Transactions of the ASME . Journal of engineering for gas turbines and power > Vol. 132 N° 11 (Novembre 2010) . - 07 p. Mots-clés : Atmospheric  turbulence  Boltzmann  equation  Finite  volume  methods  Fission  reactors  Numerical  analysis  Poisson  equation Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Numerical simulation code for predicting void distribution in two-phase turbulent flow in a subchannel was developed. The purpose is to obtain a profile of void distribution in the subchannel. The result will be used for predicting a heat flux at departure from nucleate boiling in a rod-bundle for the pressurized water reactor (PWR). The fundamental equations were represented by a generalized transport equation and the transport equation was transformed onto the generalized coordinate system fitted to the rod surface and the symmetric lines in the subchannel. Using the finite-volume method the transport equation was discretized for the SIMPLE algorithm. The flow field and void fraction at the steady-state were calculated for different average void fractions. The computational result for atmospheric pressure condition was successfully compared with experimental data. Sensitivity analysis for the PWR condition was performed, and the result showed that the secondary flow slightly contributed to homogenizing the void distribution. DEWEY : 620.1 ISSN : 0742-4795 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JETPEZ00013 [...]