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The counter-rotating core of a swirling turbulent jet issued from a rotating pipe flow
KTH, Superseded Departments, Mechanics.
KTH, Superseded Departments, Mechanics.ORCID iD: 0000-0002-1146-3241
2004 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 16, no 9, L71-L73 p.Article in journal (Refereed) Published
Abstract [en]

Axially rotating turbulent pipe flow is an example where rotation strongly affects the turbulence and thereby the Reynolds stresses and mean flow properties. The present Letter reports new measurements where a rotating pipe flow is used to establish a swirling jet. The measurements in the jet show that at some distance downstream (approximately 6 nozzle diameters) the central part of the jet starts to rotate in the opposite direction as compared to the rotation of the pipe. This effect is explained by the influence of the cross flow Reynolds stress originating in the pipe flow.

Place, publisher, year, edition, pages
2004. Vol. 16, no 9, L71-L73 p.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-23645DOI: 10.1063/1.1779252ISI: 000223273600003Scopus ID: 2-s2.0-4544316043OAI: oai:DiVA.org:kth-23645DiVA: diva2:342344
Note
QC 20100525 QC 20110923Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Alfredsson, P. Henrik

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