Evaluation of spray drift using low-speed wind tunnel measurements and dispersion

Fritz, Bradley. K., Hoffmann, W. Clint, Birchfield, Norman B., Ellenberger, Jay, Kahn, Faruque, Bagley, W. E., Thornburg, Jonathan W. and Hewitt, Andrew (2010) Evaluation of spray drift using low-speed wind tunnel measurements and dispersion. Journal of ASTM International (JAI), 7 6: 1-14. doi:10.1520/JAI102775

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Author Fritz, Bradley. K.
Hoffmann, W. Clint
Birchfield, Norman B.
Ellenberger, Jay
Kahn, Faruque
Bagley, W. E.
Thornburg, Jonathan W.
Hewitt, Andrew
Title Evaluation of spray drift using low-speed wind tunnel measurements and dispersion
Journal name Journal of ASTM International (JAI)   Check publisher's open access policy
ISSN 1546-962X
Publication date 2010-06-21
Sub-type Article (original research)
DOI 10.1520/JAI102775
Volume 7
Issue 6
Start page 1
End page 14
Total pages 14
Place of publication West Conshohocken, PA , U.S.A.
Publisher ASTM International
Collection year 2011
Language eng
Formatted abstract
The drift of aerially applied crop protection and production materials is studied using a novel simulation-based design of experiments approach. Many factors that can potentially contribute to downwind deposition from aerial spray application are considered. This new approach can provide valuable information about the significant level of the impact from all factors and interactions among them that affect drift using simulation software such as AGDISP. The application efficiency, the total downwind drift, the cumulative downwind deposition between 30.48 m (100 ft) and 45.72 m (150 ft), and the deposition at 30.48 m (100 ft), 76.2 m (250 ft), and 152.4 m (500 ft) are established as the performance metrics. The most significant factors will be identified using statistical analysis based on simulation results, and suggestions for improvement will be made. Through preliminary study, the new simulation-based method has shown the potential for statistic analysis without conducting time-consuming field experiments. The new method can be used to search for the optimal spray conditions, which could be used to generate guidelines for applicators to achieve an optimal spray result. The effective use of simulation tool through the identification of significant factors can greatly simplify the field study.
Copyright © 2010 by ASTM International
Keyword Spray drift
Aerial application
Simulation
Design of experiments
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
 
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Created: Wed, 23 Mar 2011, 11:57:00 EST by Marie-Louise Moore on behalf of School of Land, Crop and Food Sciences