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An Experimental Study on the Relation Between the Wake Inlet Conditions and the Near Wake Topology
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-3251-8328
2016 (English)In: Springer Proceedings in Physics, Springer Science+Business Media B.V., 2016, 133-138 p.Conference paper (Refereed)
Abstract [en]

A study on the relation between the wake inlet conditions and the wake characteristics of a bluff body by means of Particle Image Velocimetry is presented. The wake inlet condition, being a laminar boundary layer at the trailing edge of the body, are varied by means of wall-suction. Measurements are carried out at Reh = 6.7 × 103 based on the body thickness h. The induced radius of curvature of the streamlines is shown to be a promising parameter in explaining the increase in base drag and decrease in vortex shedding frequency associated with a thinner boundary layer.

Place, publisher, year, edition, pages
Springer Science+Business Media B.V., 2016. 133-138 p.
Keyword [en]
Boundary layers, Intake systems, Velocity measurement, Wakes, Bluff body, Inlet conditions, Particle image velocimetries, Radius of curvature, Trailing edges, Vortex shedding frequency, Wall suction, Laminar boundary layer
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-195555DOI: 10.1007/978-3-319-30602-5_17ISI: 000387431400017ScopusID: 2-s2.0-84979031674ISBN: 9783319306001OAI: oai:DiVA.org:kth-195555DiVA: diva2:1048485
Conference
5th International Conference on Jets, Wakes and Separated Flows, ICJWSF2015, 15 June 2015 through 18 June 2015
Note

QC 20161121

Available from: 2016-11-21 Created: 2016-11-03 Last updated: 2017-01-10Bibliographically approved

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