A modified particle tracking velocimetry technique to characterize sprinkler irrigation drops

Félix, Jesús Ramiro Félix; Salinas-Tapia, Humberto; Bautista-Capetillo, Carlos; García-Aragón, Juan Antonio; Burguete, J.; Playán, E.

doi:10.1007/s00271-017-0556-6

Cited by 14 publications

(9 citation statements)

References 48 publications

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“…The advance of science and technology has led to the development of more advanced droplet measuring methods. Currently, the laser method can record the droplet diameter and capture information about other aspects of the droplet, such as its velocity, impact angle and shape (Félix‐Félix et al, 2017; Hui, Yan, et al, 2021; Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Comprehensively evaluating and modelling droplet diameters and kinetic energies of low‐pressure sprinklers

Hui

Zheng

Meng

et al. 2022

Irrigation and Drainage

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Proper droplet diameter and kinetic energy can effectively reduce the risk of soil erosion during low-pressure sprinkler irrigation. In this study, we comprehensively evaluated the radial distributions of droplet diameter, velocity, kinetic energy, kinetic energy per unit droplet volume, and specific power for three common low-pressure sprinklers, i.e. Nelson D3000, R3000 and Komet KPT, with two operating pressures (103 and 138 kPa) and three nozzle outlet diameters (3.97, 5.95 and 7.94 mm). Additionally, the relationships between these droplet characteristic parameters were analysed. Overall, the maximum values of five characteristic parameters were observed at the end of the jet under various treatments. Although R3000 had a larger droplet diameter (0.10-6.42 mm) and kinetic energy (1.08 Â 10 À10 -8.59 Â 10 À3 J) distribution range than D3000 and KPT, the D3000 specific power (mean value of 0.4274 W m À2 ) was the highest of the three sprinklers. Therefore, KPT was suggested more in low-pressure sprinkler irrigation than in the other two sprinklers because its application rates were reduced along the radial direction. In addition to selecting a suitable sprinkler type for minimizing specific power, determining a reasonable sprinkler spacing was also significant (P < 0.01). Furthermore, a universal specific power model with an appropriate accuracy (RMSE = 0.011 W m À2 , NRMSE = 29%) was proposed. This study provides a key basis for the selection and combination of low-pressure sprinklers.droplet diameter, kinetic energy, low-pressure sprinklers, specific power, universal model Résumé Un diamètre de gouttelettes et une énergie cinétique appropriés peuvent réduire efficacement le risque dérosion des sols lors de l'irrigation par aspersion à basse pression. Dans cette étude, nous avons évalué de façon complète les distributions radiales du diamètre des gouttelettes, de la vitesse, de l'énergie cinétique, de l'énergie cinétique par unité de volume des gouttelettes, et de la puissance spécifique pour trois sprinklers courants à basse pression, à savoir Nelson D3000, R3000 et Komet KPT, avec deux pressions de fonctionnement (103 et 138 kPa) et trois diamètres de sortie de la buse (3,97, 5.95 et 7.94 mm). De plus, Article title in French: Evaluation et modélisation complètes des diamètres de gouttelettes et des énergies cinétiques des sprinklers basse pression.

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Section: Introductionmentioning

confidence: 99%

Comprehensively evaluating and modelling droplet diameters and kinetic energies of low‐pressure sprinklers

Hui

Zheng

Meng

et al. 2022

Irrigation and Drainage

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“…The Particle Tracking Velocimetry (PTV) technique of Bautista-Capetillo et al [19] modified by Félix-Félix et al [29] was used to characterize the sprinkler drops. The objective was to quantify the energy losses due to the impact of the jet with the sprinkler's plate.…”

Section: Experimental Set-up For Drops Characterizationmentioning

confidence: 99%

“…Further information about PTV technique and image processing could be found in Bautista-Capetillo et al [19] and Félix-Félix et al [29] and the research work of Sánchez-Burillo et al [31] for the inverse simulation.…”

Section: Experimental Set-up For Drops Characterizationmentioning

confidence: 99%

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Characterization and Simulation of a Low-Pressure Rotator Spray Plate Sprinkler Used in Center Pivot Irrigation Systems

Rovelo

Zapata

Tolosa

et al. 2019

Water

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Spray sprinklers enable to operate at low pressures (<103 kPa) in self-propelled irrigation machines. A number of experiments were performed to characterize the water distribution pattern of an isolated rotator spray plate sprinkler operating at very low pressure under different experimental conditions. The experiments were performed under two pressures (69 kPa and 103 kPa) and in calm and windy conditions. The energy losses due to the impact of the out-going jet with the sprinkler plate were measured using an optical technique. The adequacy to reproduce the measured water distribution pattern under calm conditions of two drop size distribution models was evaluated. A ballistic model was used to simulate the water distribution pattern under wind conditions evaluating three different drag models: (1) considering solid spherical drops; (2) a conventional model based on wind velocity and direction distortion pattern, and (3) a new drag coefficient model independent of wind speed. The energy losses measured with the optical method range from 20% to 60% from higher to lower nozzle sizes, respectively, for both evaluated working pressures analyzing over 16,500 droplets. For the drop size distribution selected, Weibull accurately reproduced the water application with a maximum root mean square error (RMSE) of 19%. Up to 28% of the RMSE could be decreased using the wind-independent drag coefficient model with respect to the conventional model; the difference with respect to the spherical model was 4%.

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“…Flow rate is an important index for assessing the performance of sprinkler [20,21]. The relationship between average pressure and flow rate at the constant pressure and the pulsating pressure is shown in Figure 3.…”

Section: Sprinkler Flow Ratementioning

confidence: 99%

Effect of Pulsating Pressure on Water Distribution and Application Uniformity for Sprinkler Irrigation on Sloping Land

Zhang

Ren

et al. 2019

Water

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Crops are highly susceptible to drought in sloping land. Due to its good adaptability to complex terrain, sprinkler irrigation is one of the commonly used methods for sloping land. To improve water application uniformity for sprinkler irrigation on sloping land, an experiment was conducted on an artificial slope to determine the effects of pulsating versus constant pressure on sprinkler flow rate, radius of throw, water distribution pattern, and water application uniformity. Compared with sprinkler flow rate and water distribution uniformity at constant pressure, sprinkler flow rate was not reduced, but water distribution uniformity for a single sprinkler was improved due to the decreased uphill throw, downhill throw and the ratio of downhill throw to uphill throw at pulsating pressure. The Christiansen Uniformity Coefficient (CU) value of water distribution for a single sprinkler at pulsating pressure was about 10% higher than that of constant pressure. When water distribution of single sprinkler overlapped with rectangular arrangement, CU values for pulsating pressure were on average 4.06% higher than those for constant pressure with different sprinkler spacings. Thus, pulsating pressure is recommended for use in sprinkler irrigation on sloping land to improve water application uniformity.

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A modified particle tracking velocimetry technique to characterize sprinkler irrigation drops

Cited by 14 publications

References 48 publications

Comprehensively evaluating and modelling droplet diameters and kinetic energies of low‐pressure sprinklers

Comprehensively evaluating and modelling droplet diameters and kinetic energies of low‐pressure sprinklers

Characterization and Simulation of a Low-Pressure Rotator Spray Plate Sprinkler Used in Center Pivot Irrigation Systems

Effect of Pulsating Pressure on Water Distribution and Application Uniformity for Sprinkler Irrigation on Sloping Land

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