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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 47, 2020 Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v43.i1.40
pages 39-49

A Novel Volume of Fluid Model for Numerical Simulation of Wettability of Falling Film over Horizontal Tubes

Nitin U. Korde
Department of Mechanical Engineering, G. H. Raisoni Institute of Engineering & Technology Pune 412207, Maharashtra, India
Ashok T. Pise
Department of Mechanical Engineering, Government College of Engineering Karad 415124, Maharashtra, India

Краткое описание

Wettability is a fraction of wetted area on tubes by a film flow. In this study, the wetting characteristics of falling film on the horizontal tube are numerically investigated. The wetting characteristics are dependent on the properties of the liquid and flow regime especially in droplet and droplet to jet mode. However, experimental efforts observed in the literature are based on the measurement of mass flow rate and it is difficult to record wettability of tube. The objective of this paper is to record wettability of tube using numerical simulation. A numerical study is carried out using a computational fluid dynamics (CFD) code for 3D configuration considering geometrical and thermophysical parameters using volume of fluid model in Fluent 6.0. Commonly used fluids of modified Galileo number in the range of 36 to 552 are used for numerical simulation. In the current study, correlations of wettability measurement for smooth and rough surface are introduced. The results based on the generalized proposed correlations are validated with the experimental studies. It is observed that wettability increases with mass flow rate and diameter of tube and is maximum for high viscous fluid.