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Multiphase Science and Technology
SJR: 0.124 SNIP: 0.222 CiteScore™: 0.26

ISSN Druckformat: 0276-1459
ISSN Online: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v3.i1-4.40
pages 85-127

INTERFACIAL MASS GENERATION RATE MODELLING IN NON-EQUILIBRIUM TWO-PHASE FLOW

G. Yadigaroglu
Swiss Federal Institute of Technology (ETH), Nuclear Engineering Laboratory ETH Zentrum, CH-8092 Zurich, Switzerland
A. Bensalem
Nuclear Engineering Laboratory, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland CH-8092

ABSTRAKT

The various approaches used for modelling interfacial mass generation in two-phase flow are reviewed. The mass generation problem is strongly related to the questions of interfacial heat transfer and to the determination of the interfacial area. The available literature is discussed and a classification is made according to the nature of the heat transfer regimes or mechanisms (growth of bubbles, evaporation of droplets, post-dryout heat transfer, subcooled boiling, etc.) as well as according to the nature of the model used (mechanistic models, relaxation, profile-fit and empirical methods). Whenever possible, the discussion is directed toward the definition of the closure laws needed for the modern two-fluid thermal-hydraulics codes.


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