Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Multiphase Science and Technology
SJR: 0.183 SNIP: 0.483 CiteScore™: 0.5

ISSN Печать: 0276-1459
ISSN Онлайн: 1943-6181

Выпуски:
Том 32, 2020 Том 31, 2019 Том 30, 2018 Том 29, 2017 Том 28, 2016 Том 27, 2015 Том 26, 2014 Том 25, 2013 Том 24, 2012 Том 23, 2011 Том 22, 2010 Том 21, 2009 Том 20, 2008 Том 19, 2007 Том 18, 2006 Том 17, 2005 Том 16, 2004 Том 15, 2003 Том 14, 2002 Том 13, 2001 Том 12, 2000 Том 11, 1999 Том 10, 1998 Том 9, 1997 Том 8, 1994 Том 7, 1993 Том 6, 1992 Том 5, 1990 Том 4, 1989 Том 3, 1987 Том 2, 1986 Том 1, 1982

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v28.i3.40
pages 259-297

REVIEW ON TWO-FLUID MODEL FOR TWO-PHASE FLOW

Mamoru Ishii
Therma-Hydraulics and Reactor Safety Laboratory, School of Nuclear Engineering, Purdue University, 400 Central Drive, West Lafayette, IN 47907, USA

Краткое описание

The two-fluid model formulation is discussed in detail. The emphasis of the paper is on the three-dimensional formulation and the closure issues. The origin of the interfacial and turbulent transfer terms in the averaged formulation is explained and their original mathematical forms are examined. The interfacial transfer of mass, momentum, and energy is proportional to the interfacial area and driving force. This is not a postulate but a careful examination of the mathematical form of the exact interfacial terms. These two effects are considered separately. Since all the interfacial transfer terms involve the interfacial area concentration, the accurate modelling of the local interfacial is the first step to be taken for development of reliable two-fluid model closure relations. The interfacial momentum interaction has been studied in terms of the standard drag, lift, virtual mass, and Basset forces. Available analytical and semi-empirical correlations and closure relations are reviewed and existing shortcomings are pointed out. The other major area of importance is the modelling of turbulent transfer in two-phase flow. The two-phase turbulence cannot be understood without understanding the interfacial drag and lift forces accurately. There are some indications that the mixing length type model may not be sufficient to describe the three-dimensional turbulent and flow structures. Although it is a very difficult challenge, the two-phase flow turbulence should be investigated both experimentally and analytically with long time-scale research.


Articles with similar content:

TWO-FLUID MODEL FOR TWO-PHASE FLOW
Multiphase Science and Technology, Vol.5, 1990, issue 1-4
Mamoru Ishii
SCALAR TRANSPORT MODELLING OF TURBULENT JET DIFFUSION FLAMES
TSFP DIGITAL LIBRARY ONLINE, Vol.1, 1999, issue
Yang Zhang, Wai-Tung Chan
SCALAR TRANSPORT MODELLING OF TURBULENT JET DIFFUSION FLAMES
Turbulence and Shear Flow Phenomena -1 First International Symposium, Vol.0, 1999, issue
Yang Zhang, Wai-Tung Chan
CALCULATION OF HEAT TRANSFER AMD FLOW RESISTANCE OF ROUGH AND SMOOTH SURFACES CONTAINED IN A SINGLE PASSAGE
International Heat Transfer Conference 3 , Vol.9, 1966, issue
David Wilkie
PHASE SEPARATION AT T JUNCTIONS
Multiphase Science and Technology, Vol.11, 1999, issue 4
Barry J. Azzopardi