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Characterization of artificial rainfall produced by a portable rainfall simulator using a rotating dynamic rainfall gauge system

2024-07-02Journal article Restricted
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dc.contributor.authorCosta, Antônio Reynaldo de Sousa
dc.contributor.authorAlvarenga, Lívia Alves
dc.contributor.authorThebaldi, Michael Silveira
dc.contributor.authorLima, Luiz Antonio
dc.contributor.authorColombo, Alberto
dc.contributor.authorGreen, Daniel
dc.contributor.authorIsidoro, Jorge
dc.date.accessioned2024-09-24T09:37:08Z
dc.date.available2024-09-24T09:37:08Z
dc.date.issued2024-07-02
dc.description.abstractRainfall properties and drop spectra characterization is essential when designing and using rainfall simulators to properly replicate natural rainfall characteristics. This study considered a small-scale rainfall simulator operating under varying nozzle, pressure and rotating disc scenarios. A dynamic rainfall gauge system developed at the Federal University of Lavras was used to quantify the impact velocity of rainfall droplets and kinetic energy, and to conduct radial uniformity analyses. The results showed that the rainfall intensity, impact velocity of droplets, kinetic energy, and uniformity of distribution of rainfall are influenced by effects of the spray nozzle, operating pressure and the rotating disc opening of the rainfall simulator. Lower values of simulated rainfall kinetic energy were observed compared to the empirical natural rainfall kinetic energy at equivalent rainfall intensities. This paper highlights the influence of rainfall simulator design specifications on resultant rainfall spectra and validates simulated rainfall against empirically based natural rainfall characteristics.eng
dc.description.sponsorshipAPQ-00709-21; 429247/2018-4; 305295/2021-7;
dc.identifier.doi10.1080/02626667.2024.2368266
dc.identifier.eissn2150-3435
dc.identifier.issn0262-6667
dc.identifier.urihttp://hdl.handle.net/10400.1/25922
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor and Francis
dc.relation.ispartofHydrological Sciences Journal
dc.rights.uriN/A
dc.subjectRainfall simulator
dc.subjectDynamic rainfall gauge system
dc.subjectRaindrop velocity
dc.subjectRaindrop kinetic energy
dc.subjectRainfall uniformity
dc.subjectEeperimental hydrology
dc.subjectChristiansen uniformity coefficient
dc.titleCharacterization of artificial rainfall produced by a portable rainfall simulator using a rotating dynamic rainfall gauge systemeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1227
oaire.citation.issue9
oaire.citation.startPage1218
oaire.citation.titleHydrological sciences journal
oaire.citation.volume69
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameIsidoro
person.givenNameJorge
person.identifierR-000-7SY
person.identifier.ciencia-idA617-A962-DE4F
person.identifier.orcid0000-0002-6901-5652
person.identifier.ridN-1814-2015
person.identifier.scopus-author-id55250130500
relation.isAuthorOfPublicationce8b5f4a-f058-4320-b57b-0cb775918b7b
relation.isAuthorOfPublication.latestForDiscoveryce8b5f4a-f058-4320-b57b-0cb775918b7b

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