图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 30, 2020 卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.2015013237
pages 349-376

ELECTROHYDRODYNAMIC INSTABILITY OF A NON-NEWTONIAN DIELECTRIC LIQUID JET MOVING IN A STREAMING DIELECTRIC GAS WITH A SURFACE TENSION GRADIENT

Mohamed El-Sayed
Ph. D.
G. M. Moatimid
Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Roxy, Cairo, Egypt
F. M. F. Elsabaa
Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Roxy 11757, Cairo, Egypt
M. F. E. Amer
Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Roxy 11757, Cairo, Egypt

ABSTRACT

In this paper the mechanisms of a temporal electrohydrodynamic axisymmetric instability of non-Newtonian dielectric liquid jets moving through a dielectric gas with surface tension gradient have been investigated. The dispersion relation between the nondimensional growth rate and the nondimensional wave number for the eight-constant Oldroyd model is derived using appropriate boundary conditions. The effects of different parameters such as Ohnesorge number, Weber number, elasticity number, deformation retardation to stress relaxation ratio, gas to liquid density ratio, gas to liquid velocity ratio, electric field, and the dielectric constants of the two media on the stability behavior of the system are discussed in detail. Comparisons between the cases of absence or presence of electric field, non-Newtonian fluids, surface tension gradient, and gas to liquid velocity are achieved. The present work is a good foundation for the invistigations of the instability and breakup of non-Newtonian liquid jets with electric field effect and surface tension gradient existence.


Articles with similar content:

THREE-DIMENSIONAL INSTABILITY OF NON-NEWTONIAN VISCOELASTIC LIQUID JETS ISSUED INTO A STREAMING VISCOUS (OR INVISCID) GAS
International Journal of Fluid Mechanics Research, Vol.44, 2017, issue 2
F. M. F. Elsabaa, G. M. Moatimid, Mohamed El-Sayed, M. F. E. Amer
AXISYMMETRIC AND ASYMMETRIC INSTABILITIES OF A NON-NEWTONIAN LIQUID JET MOVING IN AN INVISCID STREAMING GAS THROUGH POROUS MEDIA
Journal of Porous Media, Vol.19, 2016, issue 9
F. M. F. Elsabaa, G. M. Moatimid, Mohamed El-Sayed, M. F. E. Amer
ELECTROHYDRODYNAMIC INSTABILITY OF NON-NEWTONIAN DIELECTRIC LIQUID SHEET ISSUED INTO STREAMING DIELECTRIC GASEOUS ENVIRONMENT
Interfacial Phenomena and Heat Transfer, Vol.3, 2015, issue 2
F. M. F. Elsabaa, G. M. Moatimid, Mohamed El-Sayed, M. F. E. Amer
INFLUENCES OF BOUNDED AND COMPRESSIBLE GAS MEDIUM ON THE INSTABILITY OF AN ANNULAR POWER-LAW LIQUID JET
Atomization and Sprays, Vol.28, 2018, issue 5
Qing Du, Fu-Qiang Bai, Yi-bo Wang, Jin-Peng Guo
DUAL-MODE LINEAR ANALYSIS OF TEMPORAL INSTABILITY FOR POWER-LAW LIQUID SHEET
Atomization and Sprays, Vol.26, 2016, issue 4
Hanyu DENG, Xiao-Song Wu, Feng Feng