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.2012004599
pages 37-56

SIMULATION ON MOTION OF A GROUP OF CHARGED DROPLETS IN AN ELECTROSTATIC SPRAY PROCESS

Jun Zhang
Cleaning Combustion and Energy Utilization Research Center of Fujian Province, School of Mechanical Engineering, Jimei University, China
Hongzhou He
Cleaning Combustion and Energy Utilization Research Center of Fujian Province, School of Mechanical Engineering, Jimei University, China

RÉSUMÉ

Considering the droplet size and charge distributions, breakup length of the charged jet, electrical interaction between droplets, and especially, the variation of droplet number with time, the two-dimensional motion is simulated for a group of charged droplets continuously generated in an electrostatic spray process. The droplet spatial distributions obtained from simulation and from experiments are basically consistent. The simulation results show that the larger droplets move mainly in the central area of spray, while the smaller ones have a trend moving toward the edge area of spray. The results also show that the effect of the electrical interaction force between droplets on droplet motion is significant, and it cannot be ignored for cases with a fairly long distance from the capillary exit. In the area near the capillary exit, the electrical interaction force is very large and its direction also randomly changes during the droplet migration process. This leads to a significant fluctuation in the droplet velocity curve. With the increase of distance from the capillary exit, the electrical interaction force becomes small and relatively regular. This causes the droplet velocity and trajectory curves to gradually become smooth. In comparison, the curves of velocity and trajectory for large droplets are smoother than those for small droplets. In addition, droplet concentration, axial and radial velocity distributions, as well as the forces on the droplet are also obtained, and some local behaviors of droplet motion are revealed.


Articles with similar content:

Molecular Dynamics Investigation on the Wetting Process of Liquid Droplet on a Solid Surface
International Heat Transfer Conference 15, Vol.29, 2014, issue
Donatas Surblys, Koji Kuroda, Tadashi Nakajima, Hideo Fujimura, Yasutaka Yamaguchi, Masaru Kagawa, Shogo Nishida, Eisuke Arakaki
THEORETICAL MODELING OF SPRAY DROP DEFORMATION AND BREAKUP IN THE MULTIMODE BREAKUP REGIME
Atomization and Sprays, Vol.25, 2015, issue 10
H. Wu, Shinan Chang, L. Ding, J. M. Thompson, Chen Wang
DISPERSION (ELECTROSTATIC/MECHANICAL) AND FUEL PROPERTIES EFFECTS ON SOOT PROPENSITY IN CLUSTERS OF DROPS
Atomization and Sprays, Vol.8, 1998, issue 6
Josette Bellan, K. Harstad
AN EXPERIMENTAL STUDY ON THE INTERACTION BETWEEN AN IMMISCIBLE DROPLET AND A LIQUID TAYLOR-VORTEX FLOW
ICHMT DIGITAL LIBRARY ONLINE, Vol.5, 1997, issue
Hidetoshi Hana, Yoshimichi Hagiwara, Mitsuru Tanaka, T. None, M. Nakamura
INFLUENCES OF INJECTION PARAMETERS ON TWIN-FLUID DISINTEGRATION OF LIQUID JET
ICLASS 94
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems, Vol.0, 1994, issue
T. Inamura, Y.S. Kim, Nobuki Nagai