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.v6.i6.40
pages 693-707

ENTRAINED AIR AND DROPLET VELOCITIES PRODUCED BY AGRICULTURAL FLAT-FAN NOZZLES

P. C. H. Miller
Silsoe Research Institute, Wrest Park, Silsoe, Bedfordshire, United Kingdom
M. C. Butler Ellis
Silsoe Research Institute, Wrest Park, Silsoe, Beds, United Kingdom
C. R. Tuck
Silsoe Research Institute, Wrest Park, Silsoe, Beds, United Kingdom

RÉSUMÉ

Entrained air velocities, caused by the movement of droplets from an agricultural flat-fan nozzle through the air, have been determined in vertical and radial directions within the spray by measuring the velocities of small droplets used as tracers for air movement. The distributions of droplet volume median diameter and mean liquid velocity within the spray were also measured using a PMS laser imaging probe. The spray volume distribution in a horizontal plane below the nozzle was recorded.
The radial air velocity component declined with distance from the nozzle, r, and with angle from the centerline, θ. Liquid velocity, mean droplet size, and spray volume distribution also varied with r and θ. A model developed to predict the entrained air velocities was adapted in order to be compared with the experimental results. The model predicts well the variation of entrained air velocity with r, but the measured velocity declines more quickly with θ than with the model.


Articles with similar content:

CHARACTERIZATION OF FIRE SPRINKLER SPRAYS USING PARTICLE IMAGE VELOCIMETRY
Atomization and Sprays, Vol.15, 2005, issue 3
David T. Sheppard, Richard M. Lueptow
A DESCRIPTION OF THE DROPLET SPECTRA PRODUCED BY A FLAT-FAN NOZZLE
Atomization and Sprays, Vol.3, 1993, issue 4
Andrew C. Chapple, Franklin R. Hall
PRIMARY BREAKUP IN GAS/LIQUID MIXING LAYERS FOR TURBULENT LIQUIDS
Atomization and Sprays, Vol.2, 1992, issue 3
L.-K. Tseng, P.-K. Wu, G. M. Faeth
STRUCTURE OF A NONEVAPORATING SWIRL INJECTOR SPRAY
Atomization and Sprays, Vol.7, 1997, issue 1
Richard Eskridge, Douglas A. Feikema, John J. Hurt
CHARACTERIZATION OF HIGH-INJECTION-PRESSURE DIESEL SPRAYS WITH RELATION TO PARTICULATE AND NOx EMISSIONS
Atomization and Sprays, Vol.8, 1998, issue 1
T. F. Su, Patrick V. Farrell