Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

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

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v24.i1-3.430
pages 428-438

The Break-up Length of Laminar Cylindrical Liquid Jets. Modification of Weber's Theory

S. Leroux
URA 230 CNRS/CORIA, Mon-Saint-Aignan Cedex, France
Christophe Dumouchel
Université et INSA de Rouen France
M. Ledoux
CORIA-UMR CNRS 6614, Universite de Rouen, Site du Madrillet Avenue de l’Universite, BP12 76801 Saint Etienne du Rouvray cedex, France


This paper reports the results of an experimental investigation on the disintegration of cylindrical liquid jets. The aim of this work is to shed more light on the physics responsible for the break-up of low speed liquid jets through an analysis of the stability curve and mainly of the development of its first maximum i.e. the critical point. The experimental work consisted in measuring break-up length of liquid jets under different ambient pressures. Contrary to what Weber's theory stipulates, it is found here that the development of the critical point is not always due to the action of the aerodynamic forces and may be due to the liquid flow itself. This conclusion leads to the definition of a new jet parameter that allows a better classification of jet behavior as far as the disintegration process is concerned. This parameter indicates whether the initial internal flow configuration will have an influence on the break-up of the jet before the appearance of the aerodynamic forces. Furthermore, in order to correctly predict the critical velocity in any situation, a new modification of Weber's theory is suggested and discussed.