Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Atomization and Sprays
Facteur d'impact: 1.262 Facteur d'impact sur 5 ans: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684

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

Atomization and Sprays

DOI: 10.1615/AtomizSpr.2015011579
pages 73-91

INSTABILITY OF A VISCOELASTIC INCOMPRESSIBLE LIQUID SHEET IN COMPRESSIBLE AMBIENT GAS

Yu-Xin Liu
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China, 100191
Ming-Xi Tong
Beijing Institute of Astronautical Systems Engineering, China Academy of Launch Vehicle Technology, Beijing, China
Lu-Jia Liu
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China, 100191
Chao-Jie Mo
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China, 100191
Li-Jun Yang
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China

RÉSUMÉ

The instability behavior of a viscoelastic plane liquid sheet in compressible invisicid ambient gas is investigated in the present study. Non-dimensionalized plots of the solutions exhibit the stabilizing or destabilizing influences of various parameters on the liquid sheet. Both spatiotemporal analysis and temporal instability analysis were conducted. The results show that larger Weber number can promote the flow to be convectively unstable. The increase of Reynolds number can decrease the absolute growth rate. The variations of Mach number and elasticity number rarely change the spatial-temporal behavior of the plane sheet when the flow is absolutely unstable. For the temporal mode, when the liquid Weber number is small enough, with the increase of Reynolds number or elasticity number, the maximum growth rate becomes smaller. With a larger Weber number, the increase of Reynolds number or elasticity number can enlarge the maximum growth rate. In addition, it has been found that with the increase of Mach number, the growth rate first decreases and then increases when We = 3; when We = 500, the increase of Mach number can enlarge the growth rate. Note that high Weber number will accelerate the breakup of viscoelastic liquid sheet.


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 F. El-Sayed, M. F. E. Amer
EFFECT OF GAS-LIQUID AXIAL VELOCITY CONTINUITY ON THE AXISYMMETRIC AND ASYMMETRIC INSTABILITIES OF A VISCOELASTIC LIQUID CORE IN A SWIRLING GASEOUS CO-FLOW
Atomization and Sprays, Vol.26, 2016, issue 1
Guodong Liu, Ming-Xi Tong, Qing-Fei Fu, Li-Jun Yang
ABSOLUTE AND CONVECTIVE INSTABILITY OF CYLINDRICAL LIQUID JETS IN CO-FLOWING GAS STREAMS
Atomization and Sprays, Vol.8, 1998, issue 1
Xianguo Li, Jihua Shen
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 F. El-Sayed, M. F. E. Amer
DUAL-MODE LINEAR ANALYSIS OF TEMPORAL INSTABILITY FOR POWER-LAW LIQUID SHEET
Atomization and Sprays, Vol.26, 2016, issue 4
Han-Yu Deng, Xiao-Song Wu, Feng Feng