|
ISSN: 1045-5110 Print
|
|
|
|
| |
You can order a single issue or an individual article, as well as view the table of contents or article abstract by clicking on the volume number, then the issue number in the right sidebar.
|
|
|
|
|
|
Institutional price: $1296.00
|
|
Online subscription
|
|
DOI: 10.1615/AtomizSpr.v14.i2
Pages: 103
|
DOI: 10.1615/AtomizSpr.v14.i2.20
|
Article price - $35.00 |
 |
LIQUID PROPERTY AND NOZZLE EFFECTS ON FLIGHT TIME OF PULSED JET SPRAY
D. Ken Giles
Department of Biological and Agricultural Engineering, University of California—Davis, Bainer Hall, One Shields Avenue, Davis, CA 95616, USA
D. Downey
Department of Biological and Agricultural Engineering, University of California—Davis, Bainer Hall, One Shields Avenue, Davis, CA 95616
D. C. Slaughter
Biological and Agricultural Engineering Department, University of California—Davis, Davis, California, USA
ABSTRACT
Time of flight of spray droplet packets is an important design parameter in intermittent spraying when there is relative motion between the atomizer and the spray target. Flight times were measured for jets of various liquids, pulse durations, and nozzles used in roadside herbicide spraying. Liquids included surfactants to enhance deposit and polymers for stream containment. Nozzle orifice diameter, pulse duration, and liquid properties all had highly significant effects on flight time. Flight time increased as initial jet velocity decreased. Time of flight decreased with increasing surface tension and decreased with addition of polymers. Flight time was highly related to surface tension of the liquid. This implies that jet breakup and subsequent drag on the droplet packets is the predominant effect on flight. A simple parametric equation was developed to predict flight time from known release conditions, fluid properties, and nozzle-to-target configuration.
pages 15
|
