Experimental Apparatus for Roll-Wave Measurements and Comparison with a 1D Mathematical Model

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dc.contributor.authorMaciel, G. F. [UNESP]
dc.contributor.authorFerreira, F. O. [UNESP]
dc.contributor.authorCunha, E. F. [UNESP]
dc.contributor.authorFiorot, G. H. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionINSA Rennes
dc.date.accessioned2018-11-26T17:41:51Z
dc.date.available2018-11-26T17:41:51Z
dc.date.issued2017-11-01
dc.description.abstractAn experimental approach to examine the instabilities present on free surfaces of non-Newtonian fluid flow occurring in inclined channels is presented. When these flows occur in favorable conditions of inclination and discharge, it is observed that the propagation of instabilities can evolve into a specific type of wave, known as roll waves. The experimental apparatus developed allows simulation of stabilized roll waves in many scenarios for Newtonian and non-Newtonian rheology fluids, thereby constituting a highly useful approach for the understanding and control of roll waves. The fluid test for the non-Newtonian case used a gel rheometrically representative of the muddy material presented in natural disasters, such as mudflows. A low-cost, high-performance, and nonintrusive level measurement system (ultrasonic transducer) is proposed. A comparison between the experimental results obtained and a one-dimensional (1D) mathematical model exhibited good amplitude and wave-period estimations.en
dc.description.affiliationSao Paulo State Univ, Postgrad Program Mech Engn, Dept Civil Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Dept Civil Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Postgrad Program Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationINSA Rennes, Lab Genie Civil & Genie Mecan, EA 3913, F-35700 Rennes, France
dc.description.affiliationUnespSao Paulo State Univ, Postgrad Program Mech Engn, Dept Civil Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Civil Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Postgrad Program Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 449550/2014-1
dc.description.sponsorshipIdCNPq: 502961/2013-9
dc.description.sponsorshipIdCNPq: 201557/2012-6
dc.description.sponsorshipIdFAPESP: 2015/25518-8
dc.format.extent10
dc.identifierhttp://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0001366
dc.identifier.citationJournal Of Hydraulic Engineering. Reston: Asce-amer Soc Civil Engineers, v. 143, n. 11, 10 p., 2017.
dc.identifier.doi10.1061/(ASCE)HY.1943-7900.0001366
dc.identifier.issn0733-9429
dc.identifier.urihttp://hdl.handle.net/11449/163399
dc.identifier.wosWOS:000413196800001
dc.language.isoeng
dc.publisherAsce-amer Soc Civil Engineers
dc.relation.ispartofJournal Of Hydraulic Engineering
dc.relation.ispartofsjr1,023
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectRoll waves
dc.subjectLow-cost experimental apparatus
dc.subjectNon-Newtonian fluids
dc.subjectUltrasonic transducer
dc.titleExperimental Apparatus for Roll-Wave Measurements and Comparison with a 1D Mathematical Modelen
dc.typeArtigo
dcterms.rightsHolderAsce-amer Soc Civil Engineers

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