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ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684
Indexed in
DILUTE EMULSIONS AND THEIR EFFECT ON THE BREAKUP OF THE LIQUID SHEET PRODUCED BY FLAT-FAN SPRAY NOZZLES
Краткое описание
Studies of the effect of dilute emulsions on spray formation by flat-fan nozzles have shown that the presence of emulsion particles changes the mechanism of liquid sheet breakup. Perforations in the liquid sheet occur at a position that is dependent on the nature and the concentration of the emulsified components. It has been suggested that perforations occur with particles of low wettability and when the liquid sheet thickness equals the particle diameter. We examined this by (1) investigating the relationship between the length of the liquid sheet and the diameter of the emulsion particles, (2) evaluating the effect of adding surfactants to the dilute emulsion on spray formation, and (3) considering how nozzle size and liquid pressure influence the breakup mechanism. It is suggested that the wettability of particles may be correlated with their ability to cause perforations if their interfacial tension is not at equilibrium. However, perforations did not appear at the position when the particle diameter was equal to the sheet thickness.
It is suggested that the emulsion particles interact with the local perturbations within the flow. These perturbations grow, causing a hole to develop in the sheet. Adding surfactants to dilute emulsions resulted in a reduction in emulsion particle size, a change in the number of emulsion particles, or a change in the number of perturbations. These changes were associated with a change in spray droplet size.
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Qin Kuide, Cloeter Mike, Tank Holger, Liu Lei, Wilson Steve, Yin De-Wei, Lindsay A. D., Zollinger R., Dean S. W., Modeling the Spray Atomization of Emulsion Embedded Agricultural Solutions, Journal of ASTM International, 7, 10, 2010. Crossref
-
Hewitt Andrew J., Spray optimization through application and liquid physical property variables–I, The Environmentalist, 28, 1, 2008. Crossref
-
Hilz Emilia, Vermeer Arnoldus W.P., Spray drift review: The extent to which a formulation can contribute to spray drift reduction, Crop Protection, 44, 2013. Crossref
-
Holloway P.J, Butler Ellis M.C, Webb D.A, Western N.M, Tuck C.R, Hayes A.L, Miller P.C.H, Effects of some agricultural tank-mix adjuvants on the deposition efficiency of aqueous sprays on foliage, Crop Protection, 19, 1, 2000. Crossref
-
Penfield Kevin, Halecky Alan, Drift Control Adjuvant Benchmarking in Agricultural Spray Applications, in Pesticide Formulation and Delivery Systems: 33rd Volume, “Sustainability: Contributions from Formulation Technology”, 2014. Crossref
-
Vernay Clara, Ramos Laurence, Ligoure Christian, Bursting of Dilute Emulsion-Based Liquid Sheets Driven by a Marangoni Effect, Physical Review Letters, 115, 19, 2015. Crossref
-
Hewitt A.J, Spray drift: impact of requirements to protect the environment, Crop Protection, 19, 8-10, 2000. Crossref
-
Miller P.C.H, Butler Ellis M.C, Effects of formulation on spray nozzle performance for applications from ground-based boom sprayers, Crop Protection, 19, 8-10, 2000. Crossref
-
Qin Kuide, Cloeter Mike, Tank Holger, Liu Lei, Wilson Steve, Yin De-Wei, Modeling the Spray Atomization of Emulsion Embedded Agricultural Solutions, in Pesticide Formulations and Delivery Systems, 30th Volume: Regulations and Innovation, 2011. Crossref
-
Sarpkaya T., Merrill C. F., Spray Generation from Turbulent Plane Water Wall Jets Discharging into Quiescent Air, AIAA Journal, 39, 7, 2001. Crossref
-
Butler Ellis M.C, Tuck C.R, Miller P.C.H, How surface tension of surfactant solutions influences the characteristics of sprays produced by hydraulic nozzles used for pesticide application, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 180, 3, 2001. Crossref
-
Saha Abhishek, Lee Joshua D., Basu Saptarshi, Kumar Ranganathan, Breakup and coalescence characteristics of a hollow cone swirling spray, Physics of Fluids, 24, 12, 2012. Crossref
-
Cryer Steven A., Altieri Anthony L., Role of large inhomogeneities in initiating liquid sheet breakup in agricultural atomisation, Biosystems Engineering, 163, 2017. Crossref
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Penfield Kevin, Dempsey Logan, Wall Jason, Sun Susan, The Role of Interfacial Rheology in Agricultural Drift Control, in Pesticide Formulation and Delivery Systems: 38th Volume, Innovative Application, Formulation, and Adjuvant Technologies, 2016. Crossref
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Dempsey Logan P., Gelardo Nicholas S., The Impact of Oil Viscosity on the Performance of Emulsion-Based Drift Reduction Agents, in Pesticide Formulation and Delivery Systems: 39th Volume, Innovative Formulation, Application and Adjuvant Technologies for Agriculture, 2019. Crossref
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Raman Narayan K., Martin James R., Pedraza Erika P., Vinyl Ester Dispersion Stabilized Oil and Polymer Adjuvants for Drift Reduction, in Pesticide Formulation and Delivery Systems: 40th Volume, Formulation, Application and Adjuvant Innovation, 2020. Crossref
-
Gong Chen, Kang Can, Jia Weidong, Yang Wanting, Wang Yuli, The effect of spray structure of oil-based emulsion spray on the droplet characteristics, Biosystems Engineering, 198, 2020. Crossref
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Vernay Clara, Ramos Laurence, Würger Alois, Ligoure Christian, Playing with Emulsion Formulation to Control the Perforation of a Freely Expanding Liquid Sheet, Langmuir, 33, 14, 2017. Crossref
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Krishnan Gautham, Cryer Steven A., Turner Jason E., Sasi Rajan Nikhil, Spray atomisation in multiphase flows with reference to tank mixes of agricultural products, Biosystems Engineering, 223, 2022. Crossref