This paper presents an application of the pressure-sensitive paint technique to investigate two-dimensional unsteady flow in a transonic channel. This work is a contribution to the study of the transonic interaction between an oscillating shock wave and a separated boundary layer in a channel flow. The shock-wave oscillation is forced by the periodic variation of the section of a second throat by means of a rotating elliptical shaft located in its section. The channel’s lower wall is equipped with a contour profile, or bump, allowing for flow separation. To achieve a reduced response time for surface pressure measurements, we use anodized-aluminum coating as pressure-sensitive paint instead of usual paint. An aluminum insert including the bump was manufactured and coated with anodized-aluminum pressure-sensitive paint. Images were acquired by using a high-speed camera, and pressure-sensitive paint results were compared with pressure tap and Kulite sensor measurements implemented in the insert. Spectral analysis was carried out to assess the ability of anodized-aluminum pressure-sensitive paint for understanding unsteady aspects of such a complex channel flow.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Pressure-Sensitive Paint Application to an Oscillating Shock Wave in a Transonic Flow


    Beteiligte:
    Merienne, M.-C. (Autor:in) / Molton, P. (Autor:in) / Bur, R. (Autor:in) / Le Sant, Y. (Autor:in)

    Erschienen in:

    AIAA Journal ; 53 , 11 ; 3208-3220


    Erscheinungsdatum :

    2015-09-07


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Unsteady Pressure-Sensitive Paint Measurement for Oscillating Shock Wave in Supersonic Nozzle

    Nakakita, Kazuyuki / Osawa, Junichi / Hori, Nobuaki et al. | AIAA | 2008


    Unsteady Pressure-Sensitive Paint Measurement for Oscillating Shock Wave in Supersonic Nozzle

    Nakakita, K. / Osawa, J. / Hori, N. et al. | British Library Conference Proceedings | 2008


    Pressure-Sensitive Paint Measurements in Planar Transonic Nozzle Flow

    Johan Gullman-Strand / Bruce F. Carroll | AIAA | 2000