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.v27.i2-4.90
pages 229-245

MECHANISTIC SIMULATION OF SLUG FLOW IN VERTICAL PIPES USING THE ONE-DIMENSIONAL TWO-FLUID MODEL

Raad I. Issa
Department of Mechanical Engineering, Imperial College London, South Kensington SW7 2AZ, United Kingdom
Francesco Galleni
Department of Mechanical Engineering, Imperial College London, South Kensington SW7 2AZ, United Kingdom

Краткое описание

In this paper, an extension of the "slug capturing" technique to vertical slug flow is presented. In this method, the initiation and development of the slugs are obtained by solving the 1D transient two-fluid model equations. This approach has the advantage of being almost entirely mechanistic: the flow develops naturally as part of the transient calculation, thus minimizing the necessity of empirical correlations typically required to model the slug dynamics. The slug capturing technique had in the past been successfully applied in horizontal slug flow configurations, but the application to vertical flow is new. In the present work, the method was found to be able to capture the formation of slugs automatically in vertical pipes. Numerous simulations were performed for a large number of flow conditions and the results are compared with experimental data. It is shown that the computed flow and slug characteristics−such as the average liquid holdup in the pipe, and the velocity and frequency of the slugs−compare fairly well with the experimental data. A mesh sensitivity study is also presented to ensure that the predicted slug characteristics do not depend on the cell length for the practical sizes of the mesh used.


Articles with similar content:

SIMULATION METHODS OF TWO-PHASE FLOW BASED ON A HYPERBOLIC TWO-FLUID MODEL
First Thermal and Fluids Engineering Summer Conference, Vol.4, 2015, issue
Moon-Sun Chung, Sung-Jae Yi
Modelling of bubbly two-phase flows using a population balance approach
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Michael Fairweather, M. Colombo
ADIABATIC AIR-WATER UPFLOW IN A LARGE DIAMETER PIPE: EXPERIMENTS VS. PREDICTIONS OF PRESSURE DROP
Second Thermal and Fluids Engineering Conference, Vol.51, 2017, issue
Kevin J. Farrell, Siddharth Talapatra
EFFECT OF CAVITATION ON FLOW AND TURBULENCE IN PLAIN ORIFICES FOR HIGH-SPEED ATOMIZATION
Atomization and Sprays, Vol.5, 1995, issue 6
Francisco Ruiz, Lu He
On the multidimensional modeling of gas-liquid slug flows
International Heat Transfer Conference 12, Vol.39, 2002, issue
Michael Z. Podowski, Henryk Anglart