Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>)
Air-assisted sprayers are widely used in orchards due to their efficiency in enhancing droplet penetration and deposition. These sprayers disperse droplets through a high-velocity airflow, which agitates the leaves and aids in canopy penetration. This study involved controlled experiments to simulat...
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MDPI AG
2024-12-01
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| Series: | Agriculture |
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| author | Guanqun Wang Xiang Dong Weidong Jia Mingxiong Ou Pengpeng Yu Minmin Wu Zhi Zhang Xinkang Hu Yourui Huang Fengxiang Lu |
| author_facet | Guanqun Wang Xiang Dong Weidong Jia Mingxiong Ou Pengpeng Yu Minmin Wu Zhi Zhang Xinkang Hu Yourui Huang Fengxiang Lu |
| author_sort | Guanqun Wang |
| collection | DOAJ |
| description | Air-assisted sprayers are widely used in orchards due to their efficiency in enhancing droplet penetration and deposition. These sprayers disperse droplets through a high-velocity airflow, which agitates the leaves and aids in canopy penetration. This study involved controlled experiments to simulate leaf movement during field spraying, with a focus on the dynamics of peach tree leaves (<i>Prunus persica</i>) in varying wind fields. An experimental setup consisting of a wind-conveying system, a measurement system, and a fixed system was designed. The moving speeds of the wind field (0.75 m/s, 0.5 m/s, and 1.0 m/s) and wind velocities (ranging from 2 m/s to 8 m/s) were varied. Key parameters, including leaf tip displacement, angular velocity, and twisting amplitude, were measured using high-speed cameras and motion analysis software. The results indicate that, at a constant wind velocity, increasing the wind field’s moving speed resulted in a reduced range of motion, decelerated angular velocity, and decreased twisting amplitude of the leaves. Notably, at a wind field speed of 8 m/s and a moving speed of 1.0 m/s, the twisting duration of the leaves was only 67% of that observed at a moving speed of 0.5 m/s. These findings suggest that wind speed and field motion characteristics play a crucial role in leaf dynamics, informing the design of air-assisted spraying systems. |
| format | Article |
| id | doaj-art-55e05939143a4618a518cf0ed6fafd85 |
| institution | Kabale University |
| issn | 2077-0472 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj-art-55e05939143a4618a518cf0ed6fafd852024-12-27T14:03:19ZengMDPI AGAgriculture2077-04722024-12-011412230710.3390/agriculture14122307Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>)Guanqun Wang0Xiang Dong1Weidong Jia2Mingxiong Ou3Pengpeng Yu4Minmin Wu5Zhi Zhang6Xinkang Hu7Yourui Huang8Fengxiang Lu9School 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 Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool 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 Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Optoelectronic Engineering, West Anhui University, Lu’an 237012, ChinaJiangsu Yueda Intelligent Agricultural Equipment Co., Ltd., Yancheng 224007, ChinaAir-assisted sprayers are widely used in orchards due to their efficiency in enhancing droplet penetration and deposition. These sprayers disperse droplets through a high-velocity airflow, which agitates the leaves and aids in canopy penetration. This study involved controlled experiments to simulate leaf movement during field spraying, with a focus on the dynamics of peach tree leaves (<i>Prunus persica</i>) in varying wind fields. An experimental setup consisting of a wind-conveying system, a measurement system, and a fixed system was designed. The moving speeds of the wind field (0.75 m/s, 0.5 m/s, and 1.0 m/s) and wind velocities (ranging from 2 m/s to 8 m/s) were varied. Key parameters, including leaf tip displacement, angular velocity, and twisting amplitude, were measured using high-speed cameras and motion analysis software. The results indicate that, at a constant wind velocity, increasing the wind field’s moving speed resulted in a reduced range of motion, decelerated angular velocity, and decreased twisting amplitude of the leaves. Notably, at a wind field speed of 8 m/s and a moving speed of 1.0 m/s, the twisting duration of the leaves was only 67% of that observed at a moving speed of 0.5 m/s. These findings suggest that wind speed and field motion characteristics play a crucial role in leaf dynamics, informing the design of air-assisted spraying systems.https://www.mdpi.com/2077-0472/14/12/2307droplet penetrationwind fieldleaf angular velocityleaf twisting amplitude |
| spellingShingle | Guanqun Wang Xiang Dong Weidong Jia Mingxiong Ou Pengpeng Yu Minmin Wu Zhi Zhang Xinkang Hu Yourui Huang Fengxiang Lu Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) Agriculture droplet penetration wind field leaf angular velocity leaf twisting amplitude |
| title | Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) |
| title_full | Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) |
| title_fullStr | Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) |
| title_full_unstemmed | Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) |
| title_short | Influence of Wind Speed on the Motion Characteristics of Peach Leaves (<i>Prunus persica</i>) |
| title_sort | influence of wind speed on the motion characteristics of peach leaves i prunus persica i |
| topic | droplet penetration wind field leaf angular velocity leaf twisting amplitude |
| url | https://www.mdpi.com/2077-0472/14/12/2307 |
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