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Experiments in Fluids

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01.07.2007 | Research Article

Performance of a 12-sensor vorticity probe in the near field of a rectangular turbulent jet

verfasst von: A. Cavo, G. Lemonis, Th. Panidis, D. D. Papailiou

Erschienen in: Experiments in Fluids | Ausgabe 1/2007

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Abstract

The design and operational characteristics of a 12-sensor hot wire probe for three-dimensional velocity–vorticity measurements in turbulent flow fields is described and discussed. The performance of the probe is investigated in comparison with X-sensor probe measurements in the near field of a rectangular turbulent jet with aspect ratio 6. Measurements have been conducted at Reynolds number Re _D = 21,000 at nozzle distances of x/D = 1, 3, 6 and 11, where D is the width of the nozzle. The results obtained with the 12-sensor probe compare well to the results of the X-sensor probe. Distributions of mean and fluctuating velocity–vorticity fields are presented and discussed. Among the results the most prominent is the experimental confirmation of the high levels of fluctuating vorticity in the shear layers.

Vorheriger Artikel Microscopic particle image velocimetry measurements of transition to turbulence in microscale capillaries

Nächster Artikel Corrections for underresolved scalar measurements in turbulent flows using a DNS database

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Titel: Performance of a 12-sensor vorticity probe in the near field of a rectangular turbulent jet
verfasst von: A. Cavo
G. Lemonis
Th. Panidis
D. D. Papailiou
Publikationsdatum: 01.07.2007
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 1/2007
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-007-0308-0

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