Optical investigation of the heat transfer from a rotating cylinder in a cross flow

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aut.relation.endpage572
aut.relation.issue6-7
aut.relation.startpage561
aut.relation.volume40
aut.researcherGschwendtner, Michael
dc.contributor.authorGschwendtner, MA
dc.date.accessioned2012-12-18T01:25:37Z
dc.date.accessioned2012-12-18T01:25:47Z
dc.date.available2012-12-18T01:25:37Z
dc.date.available2012-12-18T01:25:47Z
dc.date.copyright2004
dc.date.issued2004
dc.description.abstractThe heat transfer from a rotating cylinder in an air-cross flow was investigated by purely optical measuring techniques. Flow velocities were measured by a two-dimensional LDV both in the vicinity of the cylinder and in the boundary layer. A new optical device based on light-deflection in a temperature field was developed to examine local temperature gradients in the boundary layer of the rotating cylinder. Finally, a Michelson-interferometer was installed to produce real-time pictures of isothermal lines around the heated cylinder. The impact of rotation on flow patterns, boundary layer behaviour and heat transfer could be clearly identified. It appears that the velocity-ratio Ω acts like an independent parameter, in that flow patterns correspond to this dimensionless number. Furthermore, it seems that rotation dominates over cross flow, both fluid-dynamically and thermally above Ω = 2
dc.identifier.citationHeat and Mass Transfer/Waerme- und Stoffuebertragung, vol.40(6-7), pp.561 - 572
dc.identifier.doi10.1007/s00231-003-0475-3
dc.identifier.issn0947-7411
dc.identifier.urihttps://hdl.handle.net/10292/4935
dc.publisherSpringer
dc.relation.replaceshttp://hdl.handle.net/10292/4934
dc.relation.replaces10292/4934
dc.rightsAn author may self-archive an author-created version of his/her article on his/her own website and or in his/her institutional repository. He/she may also deposit this version on his/her funder’s or funder’s designated repository at the funder’s request or as a result of a legal obligation, provided it is not made publicly available until 12 months after official publication. He/ she may not use the publisher's PDF version, which is posted on www.springerlink.com, for the purpose of self-archiving or deposit. Furthermore, the author may only post his/her version provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at www.springerlink.com”. (Please also see Publisher’s Version and Citation)
dc.rights.accessrightsOpenAccess
dc.subjectEckert number
dc.subjectHeat transfer
dc.subjectRotating cylinder
dc.subjectCross flow
dc.subjectBoundary layer
dc.subjectFlow separation
dc.subjectOptical measuring technique
dc.subjectLaser-Doppler-Velocimeter
dc.subjectLight-deflection
dc.subjectInterferometer
dc.titleOptical investigation of the heat transfer from a rotating cylinder in a cross flow
dc.typeJournal Article
pubs.elements-id123309
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/School of Engineering
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