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Effect of viscosity on the equilibrium scour depth at single cylindrical piers

2016-03Journal article Restricted access
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dc.contributor.authorLança, Rui
dc.contributor.authorSimarro, Gonzalo
dc.contributor.authorFael, Cristina
dc.contributor.authorCardoso, António
dc.date.accessioned2017-03-23T20:20:20Z
dc.date.available2017-03-23T20:20:20Z
dc.date.issued2016-03
dc.description.abstractMost studies on scouring seem to have overlooked the effect of viscosity, the assumption being that the flow is free of viscous effects inside the scour hole because of the presence of highly turbulent flow structures such as down-flow, horseshoe vortex, and wake vortices irrespective of the approach flow regime. The present work reports the results of experiments conceived to revisit the effect of viscosity on scouring. The experiments were performed by changing the Reynolds-like numbers for two flowshallowness values and keeping constant the remaining dimensionless parameters that control the scour process. Thevalues of theReynoldsnumber corresponded to transitional approach flows. The experimental results indicate that scouring does depend on viscosity in usual laboratory conditions, the viscous effect leading to scour depths in the safety side.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttp://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0001102#sthash.tAGvgBKE.dpufpt_PT
dc.identifier.issn0733-9429
dc.identifier.otherAUT: RLA01366;
dc.identifier.urihttp://hdl.handle.net/10400.1/9108
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Society of Civil Engineerspt_PT
dc.relation.publisherversionhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)HY.1943-7900.0001102pt_PT
dc.subjectLocal scourpt_PT
dc.subjectViscositypt_PT
dc.subjectCylindrical pierpt_PT
dc.titleEffect of viscosity on the equilibrium scour depth at single cylindrical pierspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.titleJournal of Hydraulic Engineeringpt_PT
oaire.citation.volume142pt_PT
person.familyNameLança
person.givenNameRui
person.identifierR-001-Y2N
person.identifier.ciencia-idCD11-F4F2-95A3
person.identifier.orcid0000-0002-7753-3767
person.identifier.ridE-5613-2017
person.identifier.scopus-author-id55436772300
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication48b48fbe-d952-4eea-8ec5-b989420561d9
relation.isAuthorOfPublication.latestForDiscovery48b48fbe-d952-4eea-8ec5-b989420561d9

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