Standard

Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers. / Duga, Ashenafi T.; Delele, M A; Ruysen, Kris; Dekeyser, Donald; Nuyttens, David; Bylemans, Danny; Nicolaï, Bart.

In: Biosystems Engineering, Vol. 154, 2017, blz. 62-75.

Onderzoeksoutput: Bijdrage voor tijdschriftA1: Web of Science-artikel

Harvard

Duga, AT, Delele, MA, Ruysen, K, Dekeyser, D, Nuyttens, D, Bylemans, D & Nicolaï, B 2017, 'Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers' Biosystems Engineering, vol 154, blz. 62-75. DOI: 10.1016/j.biosystemseng.2016.10.010

APA

Duga, A. T., Delele, M. A., Ruysen, K., Dekeyser, D., Nuyttens, D., Bylemans, D., & Nicolaï, B. (2017). Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers. Biosystems Engineering, 154, 62-75. DOI: 10.1016/j.biosystemseng.2016.10.010

Vancouver

Duga AT, Delele MA, Ruysen K, Dekeyser D, Nuyttens D, Bylemans D et al. Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers. Biosystems Engineering. 2017;154:62-75. Beschikbaar vanaf, DOI: 10.1016/j.biosystemseng.2016.10.010

Author

Duga, Ashenafi T.; Delele, M A; Ruysen, Kris; Dekeyser, Donald; Nuyttens, David; Bylemans, Danny; Nicolaï, Bart / Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers.

In: Biosystems Engineering, Vol. 154, 2017, blz. 62-75.

Onderzoeksoutput: Bijdrage voor tijdschriftA1: Web of Science-artikel

Bibtex

@article{03fe050e73314aa2a8ccc1ea1fa99f73,
title = "Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers",
author = "Duga, {Ashenafi T.} and Delele, {M A} and Kris Ruysen and Donald Dekeyser and David Nuyttens and Danny Bylemans and Bart Nicolaï",
year = "2017",
doi = "10.1016/j.biosystemseng.2016.10.010",
volume = "154",
pages = "62--75",
journal = "Biosystems Engineering",
issn = "1537-5110",
publisher = "Academic Press Inc Elsevier Science",

}

RIS

TY - JOUR

T1 - Development and validation of a 3D CFD model of drift and its application to air-assisted orchard sprayers

AU - Duga,Ashenafi T.

AU - Delele,M A

AU - Ruysen,Kris

AU - Dekeyser,Donald

AU - Nuyttens,David

AU - Bylemans,Danny

AU - Nicolaï,Bart

PY - 2017

Y1 - 2017

N2 - Pesticides play an important role in providing high crop yields by minimising the risks associated with pests but some of the sprayed product may move beyond the intended target and result in drift. Modelling approaches can help understand the behaviour of spray drift using computer simulations. However, modelling drift from orchard spraying presents particular challenges: (1) the moving spray interacts with the canopy before drifting outside the target area; (2) the vertical wind profile in the orchard is different to neighbouring fields where there is different vegetation; (3) themoving air jet from the airassistance<br/>cannot be ignored because the airspeed of the fan is usually higher than the<br/>wind speed. This work presents a three-dimensional (3D) computational fluid dynamics (CFD) model of spray drift from orchard sprayers that considers tree architecture, canopy wind flow and the movement of the sprayer to calculate sedimenting and airborne drift; thus tackling the challenges listed above. The model was validated against drift measurements from an apple orchard with different nozzles arrangements. The model was then used to evaluate the effect of drift reducing nozzles and fan airspeed on drift. The model predicted that drift reducing nozzles reduced the drifting distance by 50%, but increased near-tree ground deposition. This increase in ground deposition can be avoided whilst retaining the reduction in the drifting distance, by using a combination of drift reducing and standard nozzles. A reduced sprayer airflow can further reduce drift.

AB - Pesticides play an important role in providing high crop yields by minimising the risks associated with pests but some of the sprayed product may move beyond the intended target and result in drift. Modelling approaches can help understand the behaviour of spray drift using computer simulations. However, modelling drift from orchard spraying presents particular challenges: (1) the moving spray interacts with the canopy before drifting outside the target area; (2) the vertical wind profile in the orchard is different to neighbouring fields where there is different vegetation; (3) themoving air jet from the airassistance<br/>cannot be ignored because the airspeed of the fan is usually higher than the<br/>wind speed. This work presents a three-dimensional (3D) computational fluid dynamics (CFD) model of spray drift from orchard sprayers that considers tree architecture, canopy wind flow and the movement of the sprayer to calculate sedimenting and airborne drift; thus tackling the challenges listed above. The model was validated against drift measurements from an apple orchard with different nozzles arrangements. The model was then used to evaluate the effect of drift reducing nozzles and fan airspeed on drift. The model predicted that drift reducing nozzles reduced the drifting distance by 50%, but increased near-tree ground deposition. This increase in ground deposition can be avoided whilst retaining the reduction in the drifting distance, by using a combination of drift reducing and standard nozzles. A reduced sprayer airflow can further reduce drift.

U2 - 10.1016/j.biosystemseng.2016.10.010

DO - 10.1016/j.biosystemseng.2016.10.010

M3 - A1: Web of Science-article

VL - 154

SP - 62

EP - 75

JO - Biosystems Engineering

T2 - Biosystems Engineering

JF - Biosystems Engineering

SN - 1537-5110

ER -