Interaction Between Application Volume, Airflow, and Spray Quality in Air-Assisted Spraying

Panneton, B.; Piché, M.

doi:10.13031/2013.17938

Cited by 7 publications

(3 citation statements)

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“…The evenness of the distribution, the quantity of the pesticide retained by the canopy and the losses to the ground depend on many factors, notably the type of application equipment,9–14 the application volume,3, 13, 15, 16 the type and position of the nozzles13, 14, 17 and the spray quality 3, 16, 17…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of a self‐propelled sprayer and effects of the application rate on spray deposition and losses to the ground in greenhouse tomato crops

López

Rincón

Páez

et al. 2011

Pest Management Science

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Section: Introductionmentioning

confidence: 99%

Field evaluation of a self‐propelled sprayer and effects of the application rate on spray deposition and losses to the ground in greenhouse tomato crops

López

Rincón

Páez

et al. 2011

Pest Management Science

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“…The assisted airflow can not only move and deform the leaves, thus widening the droplet transport channel, but also improve the droplet transfer speed. It can effectively improve droplet deposition in the plant canopy and reduce drift ( Panneton and Piché, 2005 ; Tang et al., 2021 ). Existing porosity calculation methods are difficult to express this physical process.…”

Section: Introductionmentioning

confidence: 99%

Dynamic stratified porosity computation from canopy interaction simulation between airflow and leaves

Cui,

Wang,

et al. 2023

Front. Plant Sci.

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The main goal of wind-driven spraying is to use assisted airflow to disrupt the structure of branches and leaves and broaden the air delivery channel, so as to achieve uniform droplet deposition in the middle and lower parts of the canopy. Due to the complex branch and leaf structure inside the canopy, there is currently no effective method to express the dynamic changes of canopy porosity and the law of airflow attenuation under assisted airflow. In this study, based on the two-way fluid-structure interaction numerical simulation method, the relating between the assisted airflow and the structural parameters of the cotton canopy is analyzed, and a new method for predicting and simulating the dynamic porosity of the canopy is proposed. Firstly, a two-way fluid-structure interaction model based on Lattice Boltzmann (LB) solver and Finite Element (FE) solver is developed to simulate the deformation motion of cotton leaves and the spatial distribution of airflow field, and the correctness of the numerical simulation is verified based on indoor measurement data. Secondly, the post-processing method of Computational Fluid Dynamics (CFD) is used to obtain images of leaves at different canopy positions under assisted airflow, and the porosity changes are calculated and analyzed by image processing. The research results show that under different initial wind speeds (5 m·s-1, 10 m·s-1, 15 m·s-1), the maximum normalized mean absolute error (NMAE) between the simulated values and the measured values is 13.99%, 20.72% and 16.08%, respectively. The coefficient of determination (R2) for linear fitting between simulated values and measured values is 0.9221. These validation results indicate the effectiveness of the numerical simulation method. The validated CFD model is applied to predict leaf deformation and porosity changes within the canopy under various wind loads and times. The application results have well revealed the interaction between crop leaves and airflow, and will be beneficial to make a better understanding of the effect of assisted airflow on droplet deposition.

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“…Many studies describe that angling the nozzles is an efficient, easily adjustable and inexpensive way to improve the deposition or penetration in the canopy . The use of air support or a combination of both air support and an angled spray have also showed promising results in other studies. Finally, treating the crop from two directions has also been suggested to improve spray results, especially to overcome a lower deposition on the back side of the plants …”

Section: Introductionmentioning

confidence: 99%

Effect of spray angle and spray volume on deposition of a medium droplet spray with air support in ivy pot plants

Foqué¹,

Pieters

Nuyttens³

2013

Pest Management Science

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Interaction Between Application Volume, Airflow, and Spray Quality in Air-Assisted Spraying

Cited by 7 publications

References 0 publications

Field evaluation of a self‐propelled sprayer and effects of the application rate on spray deposition and losses to the ground in greenhouse tomato crops

Field evaluation of a self‐propelled sprayer and effects of the application rate on spray deposition and losses to the ground in greenhouse tomato crops

Dynamic stratified porosity computation from canopy interaction simulation between airflow and leaves

Effect of spray angle and spray volume on deposition of a medium droplet spray with air support in ivy pot plants

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