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Investigación de vangarda para o desenvolvemento sostible

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Investigación de vangarda para o desenvolvemento sostible

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2020

Naves-García-Rendueles, Juan; Anta-Álvarez, Jose; Suárez-López, Joaquín; Puertas-Agudo, Jerónimo

Development and calibration of a new dripper-based rainfall simulator for large-scale sediment wash-off studies Journal Article

In: Water (Switzerland), vol. 12, no. 1, 2020, ISSN: 20734441, (cited By 9).

Abstract | Links | BibTeX | Etiquetas: Calibration; Drops; Mesh generation; Simulators, calibration; instrumentation; raindrop; rainfall; simulator; size distribution; urban drainage, Disdrometers; Natural rainfalls; Physical model; Pressure compensating; Raindrop size distribution; Rainfall simulators; Terminal velocity; Urban drainage, Rain

@article{Naves2020,

title = {Development and calibration of a new dripper-based rainfall simulator for large-scale sediment wash-off studies},

author = {Juan Naves-García-Rendueles and Jose Anta-Álvarez and Joaquín Suárez-López and Jerónimo Puertas-Agudo},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079506725&doi=10.3390%2fw12010152&partnerID=40&md5=c77ad8c74e149fade803a292d221a413},

doi = {10.3390/w12010152},

issn = {20734441},

year  = {2020},

date = {2020-01-01},

urldate = {2020-01-01},

journal = {Water (Switzerland)},

volume = {12},

number = {1},

publisher = {MDPI AG},

abstract = {Rainfall simulators are useful tools for controlling the main variables that govern natural rainfall. In this study, a new drop-forming rainfall simulator, which consists of pressure-compensating dripper grids above a horizontal mesh that breaks and distributes raindrops, was developed to be applied in wash-off experiments in a large-scale physical model of 36 m2. The mesh typology and size, and its distance to drippers, were established through a calibration where rain uniformity and distributions of raindrop sizes and velocities were compared with local natural rainfall. Finally, the rain properties of the final solution were measured for the three rain intensities that the rainfall simulator is able to generate (30, 50 and 80 mm/h), obtaining almost uniform rainfalls with uniformity coefficients of 81%, 89% and 91%, respectively. This, together with the very suitable raindrop size distribution obtained, and the raindrop velocities of around 87.5% of the terminal velocity for the mean raindrop diameter, makes the proposed solution optimal for wash-off studies, where rain properties are key in the detachment of particles. In addition, the flexibility seen in controlling rain characteristics increases the value of the proposed design in that it is adaptable to a wide range of studies. © 2020 by the authors.},

note = {cited By 9},

keywords = {Calibration; Drops; Mesh generation; Simulators, calibration; instrumentation; raindrop; rainfall; simulator; size distribution; urban drainage, Disdrometers; Natural rainfalls; Physical model; Pressure compensating; Raindrop size distribution; Rainfall simulators; Terminal velocity; Urban drainage, Rain},

pubstate = {published},

tppubtype = {article}

}