Experimental Investigations of a Drifting Cloud of Droplets Dispersed from Aircraft

Open access


With widespread use of pesticides in modern agriculture, the impacts of spray drift have become a topic of considerable interest. The drifting of sprays is a highly complex process influenced by many factors. The paper presents results of experimental research on a drifting cloud of droplets dispersing from aircraft. Experiments were conducted to quantify spray drift from aerial applications of pesticide. Parallel to the blowing wind, the measurement line 800 m long was disposed. The relationships between the relative dose and the distance of drift as well as spray density and its structure on the measuring length have been established.

[1] Bache D. H., Johnstone D. R.: Microclimate and Spray Dispersion. Chichester, Ellis Horwood Limited, 1992.

[2] Bache D. H., Sayer W. J. D.: Transport of Aerial Spray, I. A Model of Aerial Dispersion. Agric. Meteorol., 1975, Vol. 15, No. 2, pp. 257-271.

[3] Chladek Z.: Zagadnienia znoszenia kropel cieczy przy maoobjętościowym opryskiwaniu lotniczym. Warszawa, Aero-Agro. Seminarium Europejskiej Komisji Gospodarczej ONZ, 1978, pp. 307-312.

[4] Courshee R. J.: Drift of Spray Applied from Low Flying Aeroplanes. Cranfield, Raport of First International Agricultural Aviation Conference, 1959, pp. 148-157.

[5] Csanady G. T.: Turbulent Diffusion in the Environment. Dordrecht, D. Reidel Publishing, 1973.

[6] Elliot J. G., Wilson B. J.: The Influence of Weather on the Efficiency and Safety Pesticide Appliation. UK, Occasional Publication No. 3, Report of BCPC Res & Dev. Committe, 1983.

[7] Hartley G. S.: Physics of Droplet Drift by a Wind. Cranfield, Raport of First International Agricultural Aviation Conference, 1959, pp. 142-147.

[8] Kaul P., Mayer E., Gebauer S.: Direkte Abtrift von Pflanzenschutzmitteln - Flugzeug. Nachrichtenbl. Deut. Pflanzenschutzd., 1995, 47, pp. 36-44.

[9] Lawson T. J., Uk S.: The Influence of Wind Turbulence, Crop Characteristics and Flying Height on the Dispersal of Aerial Sprays. Atmospheric Environment, 1979, Vol. 13, No. 5, pp. 711-715.

[10] Parkin C. S., Merritt C. R.: The Measurement and Prediction of Spray Drift. UK, ICAP. Cranfield Institute of Technology, 1989.

[11] Ranz W. E., Marshall W. R.: Evaporation from Droplets. Chemical Engineering Progress, 1952, Vol. 48, No. 3, pp. 141-146, No. 4, pp. 173-180.

[12] Rowiński R. S., Wodecka C., Jumrych M.: Metodyki badań aparatury agrolotniczej. Olsztyn, ART-Olsztyn, 1988.

[13] Rowiński R. S.: Problems of Spray Drift in Plant Protection Using Aviation Techniques. Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura, 1993, Vol. 56, pp. 171-195.

[14] Rowiński R. S.: Methods Related to the Safety Application of Herbicides from Agricultural Aircrafts. Norway, International Seminar CIGR. Agric. University of Norway. Ass., 2002, pp. 226-231.

[15] Trayford R. S., Welch L. W.: Aerial Spraying: A Simulation of Factors Influencing the Distribution and Recovery of Liquid Droplets. Journal of Agricultural Engineering Research, 1977, Vol. 22, No. 2, pp. 183-196.

[16] Wanner R.: Evaporation of Water Based Pesticide Formulation In Aerial Applications. Turin, 6th International Agricultural Aviation Congress, 1980, pp. 252-271.

Archive of Mechanical Engineering

The Journal of Committee on Machine Building of Polish Academy of Sciences

Journal Information

CiteScore 2016: 0.44

SCImago Journal Rank (SJR) 2016: 0.162
Source Normalized Impact per Paper (SNIP) 2016: 0.459

Cited By


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 98 98 12
PDF Downloads 25 25 8