Designing and construction of a portable rainfall simulator

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Aghabeigi Amin Soheila; ARABKHEDRI MAHMOOD

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Paper Information

Journal: IRANIAN JOURNAL OF ECOHYDROLOGY Year:2018 | Volume:5 | Issue:1 Page(s): 229-239

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Information Journal Paper

Title

Designing and construction of a portable rainfall simulator

Author(s)

Aghabeigi Amin Soheila | ARABKHEDRI MAHMOOD

Keywords

Velocity and kinetic energy of rainfallQ2

Christiansen uniformity coefficientQ2

Flour pellet methodQ2

NozzleQ2

Abstract

Rain simulation is one of the important methods for measuring hydrological and soil erosion processes. Rapid evaluation and high repeatability capabilities are the advantages of using the rainfall simulator. The weight of constructed simulator is approximately 20 kg, can simulate rainfall at 28 to 95 mm / h intensity on the plot area of one up to three square meters. The droplet diameter was measured using Flour pellet method and stain method. Flour pellet method was selected due to higher determination factor, and then its results were applied to continue the study. The highest uniformity coefficient (96. 6%) was obtained at the intensity of 8. 3 cm/h and the lowest coefficient (90. 6%) was obtained at 9. 5 cm/h intensity, which is higher than the acceptable level. The average diameter of the droplets is from 0. 97 mm at intensity of 2. 8 cm/h to 1. 22 mm at 7. 1 cm/ h, which lies within the range of natural precipitation. Also, the range of velocity variations is from 3. 58 to 4. 21 m/s. According to the mentioned specifications, a suitable portable rainfall simulator was designed with acceptable accuracy for runoff, permeability, erosion and sedimentation studies in field.

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APA: Copy

Aghabeigi Amin, Soheila, & ARABKHEDRI, MAHMOOD. (2018). Designing and construction of a portable rainfall simulator. IRANIAN JOURNAL OF ECOHYDROLOGY, 5(1 ), 229-239. SID. https://sid.ir/paper/253990/en

Vancouver: Copy

Aghabeigi Amin Soheila, ARABKHEDRI MAHMOOD. Designing and construction of a portable rainfall simulator. IRANIAN JOURNAL OF ECOHYDROLOGY[Internet]. 2018;5(1 ):229-239. Available from: https://sid.ir/paper/253990/en

IEEE: Copy

Soheila Aghabeigi Amin, and MAHMOOD ARABKHEDRI, “Designing and construction of a portable rainfall simulator,” IRANIAN JOURNAL OF ECOHYDROLOGY, vol. 5, no. 1 , pp. 229–239, 2018, [Online]. Available: https://sid.ir/paper/253990/en

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