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Development and Application of a Quadruple Hot-Wire Technique for Turbulent Flows

Rosemann, H. and Staeger, R. and Kreplin, H.-P. (1996) Development and Application of a Quadruple Hot-Wire Technique for Turbulent Flows. Meas. Sci. Technol. 7, U.K., pp. 1477-1491. IOP Publishing Ltd., Bristol, U.K..

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An analytical evaluation method to compute the instantaneous velocityvector from the signals of multiple hot-wire probes with nearly arbitrary geometry was developed. The domain of flow angles, in which for any given set of measured sensor voltages only one single solution for the instantaneous velocity vector exists, was determined for several probe geometries. Some measurement errors occurring in the components of the mean velocity and the Reynolds stress tensor due to the spatial separation of the sensors were estimated theoretically. The comparison of different three-sensor probes with a four-sensor Kovasznay-type probe shows that with the latter a significantly better accuracy in turbulence measurements should be attainable. Accordingly, a quadrupe-sensor probe was applied to measurements in the three-dimensional boundary layer on aninclined prolate spheroid model.

Item URL in elib:https://elib.dlr.de/37510/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1996,
Title:Development and Application of a Quadruple Hot-Wire Technique for Turbulent Flows
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Journal or Publication Title:Meas. Sci. Technol. 7, U.K.
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1477-1491
Publisher:IOP Publishing Ltd., Bristol, U.K.
Series Name:7
Keywords:Dreidimensionale turbulente Grenzschichten, Reynoldsscher Spannungstensor, Turbulenzmodelle, Hitzdrahtanemometrie, Vierfach-Hitzdrahtsonde
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: DLR-Beauftragter, elib
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:08

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