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Passive scalar flux measurements in the near-field region of a swirling jet
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-1663-3553
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-1146-3241
2008 (English)In: Heat Transfer Research, ISSN 1064-2285, E-ISSN 2162-6561, Vol. 39, no 7, 597-607 p.Article in journal (Refereed) Published
Abstract [en]

The present experimental investigation is devoted to the heat flux characteristics of a passive scalar in the near-field region of a swirling jet issuing from a fully developed axially rotating pipe flow. A combined X-wire and cold-wire probe made it possible to access the instantaneous streamwise and azimuthal velocity components as well as the temperature simultaneously. Results indicate that the addition of swirl increases the integral scales and entrainment and thereby the streamwise passive scalar flux and shortens the distance and hence time needed to mix the jet with the ambient air.

Place, publisher, year, edition, pages
2008. Vol. 39, no 7, 597-607 p.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-38346DOI: 10.1615/HeatTransRes.v39.i7.40ISI: 000259764400004Scopus ID: 2-s2.0-53349161252OAI: oai:DiVA.org:kth-38346DiVA: diva2:436955
Note

5th Baltic Heat Transfer Conference Location: St Petersburg, Russia Date: SEP 19-21, 2007

QC 20110825

Available from: 2011-08-25 Created: 2011-08-25 Last updated: 2017-12-08Bibliographically approved

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Örlü, RamisAlfredsson, P. Henrik

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