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论文类型：期刊论文

发表时间：2011-05-01

发表刊物：17th International Conference on Nuclear Engineering

收录刊物：SCIE、EI、CPCI-S、Scopus

卷号：241

期号：5,SI

页面范围：1636-1642

ISSN号：0029-5493

摘要：In this paper, a new two-fluid CFD (computational fluid dynamics) model is proposed to simulate the vertical upward two-phase annular flow. This model solves the basic mass and momentum equations for the gas core region flow and the liquid film flow, where the basic governing equations are accounted for by the commercial CFD package Fluent6.3.26 (R). The liquid droplet flow and the interfacial inter-phase effects are accounted for by the programmable interface of Fluent, UDF (user defined function). Unlike previous models, the present model includes the effect of liquid roll waves directly determined from the CFD code. It is able to provide more detailed and, the most important, self-standing information for both the gas core flow and the film flow as well as the inner tube wall situations. (C) 2011 Elsevier B.V. All rights reserved.