HAO LAOMI;ZHU ZHANCHUAN China Institute of Atomic Energy, P. O. Box275, Beijing, 102413. ASSESSMENT OF TWO-PHASE CRITICAL FLOW MODELS OF RELAN5/MOD2 AND CATHARE CODE[J]. Atomic Energy Science and Technology, 1993, 27(4): 340-340. DOI: 10.7538/yzk.1993.27.04.0340
Citation: HAO LAOMI;ZHU ZHANCHUAN China Institute of Atomic Energy, P. O. Box275, Beijing, 102413. ASSESSMENT OF TWO-PHASE CRITICAL FLOW MODELS OF RELAN5/MOD2 AND CATHARE CODE[J]. Atomic Energy Science and Technology, 1993, 27(4): 340-340. DOI: 10.7538/yzk.1993.27.04.0340

ASSESSMENT OF TWO-PHASE CRITICAL FLOW MODELS OF RELAN5/MOD2 AND CATHARE CODE

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  • Received Date: December 07, 1992
  • Two--phase critical flow models of two codes are analyzed and assessed. Under upstream low sub-cooling or low guality conditions,the critical mass flow is underperdicted by RELAP5/MOD2 code andit can not reflect the influence of geometry L / D on critical flow. The critical flow model in CATHAREcode is more sophisticated, and the calculated critical mass flow agrees well with experimental data.
  • [1]
    1 Boure JA. The Critical Flow Phenomenon With Refence to Two-Phase Plow and Nuclear Reactor Systems. The Winter Annual Meeting of the ASME, 1977, 1: 195. 2 Ransom VH. RELAP5/MOD2 Code Manual, 1985, 1: 8. 3 Eguipe Mixte EDF-CEA-FRAMATOME, Modele D'ecoulement Diphadique Monodimensionnel en Regime Transitoire, D213-1 D213-1, 1984. 4 Shepherd IM. Modelling the Critical Flow in LOBI Small Break Experiments. Proceedings of the International ENS/ANS Conference on Thermal Reactor Safety, Avignon, France 1988, 10. 5 Jeandey C, Gros L, Bourgine R, et al. Auto-Vaporisation D'ecoulements Eau/Vapeur. CEA Rapport T·T·NO 163, Juillet, 1981. 6 Chataing T, Clement P. BETHSY Preliminary Data Comparison Report for International Standard Problem 27, 2"Cold Leg Break Without HPSI and With Delayed Ultimate Procedure. Centre D'etudes Nucleairesde GRENOBLE, 1991.

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