Inscrição na biblioteca: Guest
Atomization and Sprays

Publicou 12 edições por ano

ISSN Imprimir: 1044-5110

ISSN On-line: 1936-2684

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00095 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

MECHANISM OF PERFORATION BASED ON SPREADING PROPERTIES OF EMULSIFIED OILS

Volume 22, Edição 12, 2012, pp. 1053-1075
DOI: 10.1615/AtomizSpr.2013006728
Get accessGet access

RESUMO

During an agricultural application, sprays are formed by atomization through a hydraulic nozzle. Fine spray droplets can cause off-target contamination with agrochemicals when they move by air from the application site. Dilute oil-in-water emulsions create coarser sprays than water, when atomized through a flat fan nozzle, and are therefore interesting for drift control purposes. However, different emulsions influence the spray droplet size to a different extent and this effect is not yet well understood. With an aim to develop products with drift reduction properties it is necessary to comprehend the mechanism of interactions between emulsion droplets and the continuous aqueous phase. In this study, we analyze systematically the effects of different physical properties of oils on the spray formation process and investigate how the type of the emulsified oil, the concentration of emulsifier, emulsion droplet size, the spreading properties of the emulsified oil, and its viscosity influence the spray droplet size. Based on the experimental data, we propose a spray formation mechanism of dilute oil-in-water emulsions. We argue that when the liquid sheet leaves the nozzle, some emulsion droplets might merge with the air/water interface of the liquid sheet, spread there and induce a subphase flow, which, reinforced by perturbations in a turbulent flow, will initiate spray atomization. In mixtures of a dilute emulsion and a water soluble surfactant, dynamic surface tension at the interface of the liquid sheet controls the spray formation process. Surfactants located at the interface form a kinetic barrier for the spreading emulsion droplets and thus delay the atomization onset.

CITADO POR
  1. 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

  2. Cryer Steven A., Altieri Anthony L., Role of large inhomogeneities in initiating liquid sheet breakup in agricultural atomisation, Biosystems Engineering, 163, 2017. Crossref

  3. Wu Zhao-Wei, Zhao Hui, Li Wei-Feng, Xu Jian-Liang, Wang Sheng, Liu Hai-Feng, Effects of inner bubble on liquid jet breakup, Physics of Fluids, 31, 3, 2019. Crossref

  4. 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

  5. Néel B., Lhuissier H., Villermaux E., ‘Fines’ from the collision of liquid rims, Journal of Fluid Mechanics, 893, 2020. Crossref

  6. Villermaux Emmanuel, Fragmentation versus Cohesion, Journal of Fluid Mechanics, 898, 2020. Crossref

  7. 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

  8. 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

  9. Gong Chen, Li Dongyang, Kang Can, Wang Yuli, Visualisation of the evolution of perforations in oil-based emulsion sheets formed by flat-fan spray nozzles, Biosystems Engineering, 207, 2021. Crossref

  10. Zhang Xiaoguang, Xiong Lixia, Effect of adjuvants on the spray droplet size of pesticide dilute emulsion, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 619, 2021. Crossref

  11. Li Cheng, He Ruichen, He Zilong, Kumar S. Santosh, Fredericks Steven A., Hogan Christopher J., Hong Jiarong, Spatially-resolved characterization of oil-in-water emulsion sprays, International Journal of Multiphase Flow, 145, 2021. Crossref

  12. Makhnenko Iaroslav, Alonzi Elizabeth R., Fredericks Steven A., Colby Christine M., Dutcher Cari S., A review of liquid sheet breakup: Perspectives from agricultural sprays, Journal of Aerosol Science, 157, 2021. Crossref

  13. Yang Wanting, Jia Weidong, Ou Mingxiong, Zhong Wei, Jiang Li, Wang Xiaowen, Effect of Physical Properties of an Emulsion Pesticide on the Atomisation Process and the Spatial Distribution of Droplet Size, Agriculture, 12, 7, 2022. Crossref

  14. Gong Chen, Li Dongyang, Kang Can, Visualization of the evolution of bubbles in the spray sheet discharged from the air‐induction nozzle, Pest Management Science, 78, 5, 2022. Crossref

  15. 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

Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa Políticas de preços e assinaturas Begell House Contato Language English 中文 Русский Português German French Spain