A localized heating or cooling effect on stability of the boundary-layer flow on a sharp cone at zero angle of attack and freestream Mach number 6 is analyzed. Experiments were carried out in the Transit-M wind tunnel of the Institute of Theoretical and Applied Mechanics (Novosibirsk, Russia) for different heating/cooling intensities and freestream Reynolds numbers. The mean flows with localized heating/cooling are calculated using axisymmetric Navier–Stokes equations. These solutions are used for the spatial linear stability analysis to estimate the transition onset points using the e N method. Direct numerical simulations of two-dimensional disturbances propagating in the boundary layer through the cooled/heated region are performed. The experiment and computations showed similar qualitative trends. The localized cooling decreases the second-mode amplitude and delays transition. The heating produced an opposite effect, which is less pronounced.


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    Titel :

    High-Speed Boundary-Layer Stability on a Cone with Localized Wall Heating or Cooling


    Beteiligte:
    Fedorov, Alexander (Autor:in) / Soudakov, Vitaly (Autor:in) / Egorov, Ivan (Autor:in) / Sidorenko, Andrey (Autor:in) / Gromyko, Yury (Autor:in) / Bountin, Dmitry (Autor:in) / Polivanov, Pavel (Autor:in) / Maslov, Anatoly (Autor:in)

    Erschienen in:

    AIAA Journal ; 53 , 9 ; 2512-2524


    Erscheinungsdatum :

    2015-06-30


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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