This article reports on experimental aerodynamic investigations on a generic high-speed train configuration performed within two different wind tunnels. Both wind tunnels are specialized facilities for high Reynolds number investigations and offer low turbulence levels. The wind tunnels are the cryogenic wind tunnel located in Cologne (KKK) and in the high-pressure wind tunnel located in Göttingen (HDG). Both facilities are part of the German-Dutch wind tunnel association (DNW). The adaptation and application of three optical measurement techniques for such high Reynolds number investigations is described in the article. The optical methods are: Particle Image Velocimetry for the measurement of velocity fields, Background Oriented Schlieren technique for density gradient measurements, and a white light Digital Speckle Photography technique for model deformation monitoring.


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    Title :

    Optical measurement techniques for high Reynolds number train investigations


    Additional title:

    Einsatz optischer Messverfahren bei der Windkanaluntersuchung von Hochgeschwindigkeitszügen bei hohen Reynoldszahlen


    Contributors:
    Loose, S. (author) / Richard, H. (author) / Bosbach, J. (author) / Thimm, M. (author) / Becker, W. (author) / Raffel, M. (author)

    Published in:

    Experiments in Fluids ; 40 , 4 ; 643-653


    Publication date :

    2006


    Size :

    11 Seiten, 17 Bilder, 19 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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