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Characterization of very-large-scale motions in high-Re pipe flows

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Aeroespaciales
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería Aeroespaciales
dc.contributor.authorDiscetti, Stefano
dc.contributor.authorBellani, Gabriele
dc.contributor.authorOrlu, Ramis
dc.contributor.authorSerpieri, Jacopo
dc.contributor.authorSanmiguel Vila, Carlos
dc.contributor.authorRaiola, Marco
dc.contributor.authorZheng, Xiaobo
dc.contributor.authorMascotelli, Lucia
dc.contributor.authorTalamelli, Alessandro
dc.contributor.authorIaniro, Andrea
dc.contributor.funderEuropean Commissionen
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es
dc.date.accessioned2021-05-11T09:43:32Z
dc.date.available2021-06-01T23:00:04Z
dc.date.issued2019-06
dc.description.abstractVery-large-scale structures in pipe flows are characterized using an extended Proper Orthogonal Decomposition (POD)-based estimation. Synchronized non-time-resolved Particle Image Velocimetry (PIV) and time-resolved, multi-point hot-wire measurements are integrated for the estimation of turbulent structures in a pipe flow at friction Reynolds numbers of 9500 and 20000. This technique enhances the temporal resolution of PIV, thus providing a time-resolved description of the dynamics of the large-scale motions. The experiments are carried out in the CICLoPE facility. A novel criterion for the statistical characterization of the large-scale motions is introduced, based on the time-resolved dynamically-estimated POD time coefficients. It is shown that high-momentum events are less persistent than low-momentum events, and tend to occur closer to the wall. These differences are further enhanced with increasing Reynolds number.en
dc.format.extent8
dc.identifier.bibliographicCitationDiscetti, S., Bellani, G., Örlü, R., Serpieri, J., Sanmiguel Vila, C., Raiola, M., Zheng, X., Mascotelli, L., Talamelli, A. & Ianiro, A. (2019). Characterization of very-large-scale motions in high-Re pipe flows. Experimental Thermal and Fluid Science, vol. 104, pp. 1–8.en
dc.identifier.doihttps://doi.org/10.1016/j.expthermflusci.2019.02.001
dc.identifier.issn0894-1777
dc.identifier.publicationfirstpage1
dc.identifier.publicationlastpage8
dc.identifier.publicationtitleExperimental Thermal and Fluid Scienceen
dc.identifier.publicationvolume104
dc.identifier.urihttps://hdl.handle.net/10016/32586
dc.identifier.uxxiAR/0000023602
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. DPI2016-79401-Res
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/312778/EUHITes
dc.rights© 2019 Elsevier Inc.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.otherPipe flowen
dc.subject.otherBoundary layeren
dc.subject.otherPODen
dc.subject.otherVery-large-scale motionsen
dc.titleCharacterization of very-large-scale motions in high-Re pipe flowsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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