Characteristics of the Liquid Sheet of Air-Induction Spray
Spraying remains the primary method of pesticide application in plant protection, and spray drift is one of the important reasons that cause pesticide loss and environmental pollution. Air-induction spray is an anti-drift technology based on the Venturi effect. Unlike standard flat-fan sprays, the a...
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MDPI AG
2025-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/15/6/1270 |
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| author | Mingzhi Yan Fujun Chen Chen Gong Can Kang |
| author_facet | Mingzhi Yan Fujun Chen Chen Gong Can Kang |
| author_sort | Mingzhi Yan |
| collection | DOAJ |
| description | Spraying remains the primary method of pesticide application in plant protection, and spray drift is one of the important reasons that cause pesticide loss and environmental pollution. Air-induction spray is an anti-drift technology based on the Venturi effect. Unlike standard flat-fan sprays, the atomization mechanism of air-induction sprays has not yet been thoroughly studied. Therefore, a deep understanding of atomization and disintegration characteristics of air-induction spray liquid sheets is very important. This study utilized high-speed camera imaging technology to visualize the liquid sheet of air-induction sprays. Quantitative measurements were conducted on the disintegration length, spray angle, and bubble size of the liquid sheets. A comparative analysis was performed to examine the differences in liquid sheet structures between air-induction sprays and standard flat-fan sprays. The effects of different nozzle configurations and spray pressures on the liquid sheet of air-induction sprays were also discussed. The results indicate that bubbles are typical structures of the liquid sheets of the air-induction spray, and their disintegration can lead to perforations or interfacial disturbances in the liquid sheet. The study observed the coalescence of double or multiple bubbles within the liquid sheet, with atomized droplets potentially containing single or multiple bubbles. Compared to standard flat-fan sprays, air-induction sprays have smaller liquid sheet spray angles and disintegration lengths, by 23.48% and 16.32%, respectively. Bubble size decreases with increasing spray pressure but increases with larger nozzle orifice sizes. The spray angle of the liquid sheet significantly increases with higher spray pressures and larger nozzle orifice sizes. Meanwhile, the disintegration length of the liquid sheet shows a slight increase with rising spray pressures and larger nozzle orifice sizes. |
| format | Article |
| id | doaj-art-da8a8a2da149495da3a78ceeb1218995 |
| institution | OA Journals |
| issn | 2073-4395 |
| language | English |
| publishDate | 2025-05-01 |
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| series | Agronomy |
| spelling | doaj-art-da8a8a2da149495da3a78ceeb12189952025-08-20T02:24:01ZengMDPI AGAgronomy2073-43952025-05-01156127010.3390/agronomy15061270Characteristics of the Liquid Sheet of Air-Induction SprayMingzhi Yan0Fujun Chen1Chen Gong2Can Kang3School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, ChinaSpraying remains the primary method of pesticide application in plant protection, and spray drift is one of the important reasons that cause pesticide loss and environmental pollution. Air-induction spray is an anti-drift technology based on the Venturi effect. Unlike standard flat-fan sprays, the atomization mechanism of air-induction sprays has not yet been thoroughly studied. Therefore, a deep understanding of atomization and disintegration characteristics of air-induction spray liquid sheets is very important. This study utilized high-speed camera imaging technology to visualize the liquid sheet of air-induction sprays. Quantitative measurements were conducted on the disintegration length, spray angle, and bubble size of the liquid sheets. A comparative analysis was performed to examine the differences in liquid sheet structures between air-induction sprays and standard flat-fan sprays. The effects of different nozzle configurations and spray pressures on the liquid sheet of air-induction sprays were also discussed. The results indicate that bubbles are typical structures of the liquid sheets of the air-induction spray, and their disintegration can lead to perforations or interfacial disturbances in the liquid sheet. The study observed the coalescence of double or multiple bubbles within the liquid sheet, with atomized droplets potentially containing single or multiple bubbles. Compared to standard flat-fan sprays, air-induction sprays have smaller liquid sheet spray angles and disintegration lengths, by 23.48% and 16.32%, respectively. Bubble size decreases with increasing spray pressure but increases with larger nozzle orifice sizes. The spray angle of the liquid sheet significantly increases with higher spray pressures and larger nozzle orifice sizes. Meanwhile, the disintegration length of the liquid sheet shows a slight increase with rising spray pressures and larger nozzle orifice sizes.https://www.mdpi.com/2073-4395/15/6/1270air-induction nozzlespray sheetbubbles perforationdisintegration lengthvisualization experiment |
| spellingShingle | Mingzhi Yan Fujun Chen Chen Gong Can Kang Characteristics of the Liquid Sheet of Air-Induction Spray Agronomy air-induction nozzle spray sheet bubbles perforation disintegration length visualization experiment |
| title | Characteristics of the Liquid Sheet of Air-Induction Spray |
| title_full | Characteristics of the Liquid Sheet of Air-Induction Spray |
| title_fullStr | Characteristics of the Liquid Sheet of Air-Induction Spray |
| title_full_unstemmed | Characteristics of the Liquid Sheet of Air-Induction Spray |
| title_short | Characteristics of the Liquid Sheet of Air-Induction Spray |
| title_sort | characteristics of the liquid sheet of air induction spray |
| topic | air-induction nozzle spray sheet bubbles perforation disintegration length visualization experiment |
| url | https://www.mdpi.com/2073-4395/15/6/1270 |
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