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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 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.v34.i3.30
pages 224-243

A Nonlinear Model for the Atomization of Attenuating Liquid Sheets

E. A. Ibrahim
Mechanical Engineering Department, Tuskegee University, Tuskegee, Alabama 36088,USA
D. Sree
Mechanical Engineering Department, Tuskegee University, Tuskegee, Alabama 36088, USA
T. R. McKinney
Mechanical Engineering Department, Tuskegee University, Tuskegee, Alabama 36088, USA

Краткое описание

The problem of predicting the characteristics of the spray produced by the disintegration of an attenuating liquid sheet emanated into a surrounding gas is considered. A second-order nonlinear perturbation analysis is employed to investigate the evolution of the instability waves that lead to sheet breakup. The sheet breakup length, thickness, and time as well as size of drops formed upon sheet fragmentation are estimated. It is found that the breakup length, breakup time, and drop size decrease as the Weber number is increased. The breakup thickness increases by raising the Weber number. An initial disturbance of larger amplitude induces faster sheet atomization and larger drops. A higher gas-to-liquid density ratio causes a shorter sheet breakup (intact) length and reduced resultant drop size associated with larger dominant wave numbers. The present theoretical predictions are compared to experimental data, and empirical correlations and favorable agreement is observed.


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