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

e-Archivo Repository

Show simple item record Discetti, Stefano Bellani, Gabriele Orlu, Ramis Serpieri, Jacopo Sanmiguel Vila, Carlos Raiola, Marco Zheng, Xiaobo Mascotelli, Lucia Talamelli, Alessandro Ianiro, Andrea 2021-05-11T09:43:32Z 2021-06-01T23:00:04Z 2019-06
dc.identifier.bibliographicCitation Discetti, 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.
dc.identifier.issn 0894-1777
dc.description.abstract Very-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.
dc.format.extent 8
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2019 Elsevier Inc.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Pipe flow
dc.subject.other Boundary layer
dc.subject.other POD
dc.subject.other Very-large-scale motions
dc.title Characterization of very-large-scale motions in high-Re pipe flows
dc.type article
dc.subject.eciencia Ingeniería Mecánica
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2016-79401-R
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/312778/EUHIT
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationlastpage 8
dc.identifier.publicationtitle Experimental Thermal and Fluid Science
dc.identifier.publicationvolume 104
dc.identifier.uxxi AR/0000023602
dc.contributor.funder European Commission
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades (España)
dc.affiliation.dpto UC3M. Departamento de Ingeniería Aeroespacial
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Ingeniería Aeroespacial
 Find Full text

Files in this item

*Click on file's image for preview. (Embargoed files's preview is not supported)

The following license files are associated with this item:

This item appears in the following Collection(s)

Show simple item record