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    Investigation of a Porous Transpiration-Cooled Strut Injector

    Investigation of a Porous Transpiration-Cooled Strut Injector


    A feasible method was developed for cooling of the extreme aerodynamic heating of strut injectors in a scramjet engine. A porous strut injector using transpiration cooling was demonstrated to be effective in a 60 s wind-tunnel test. The Mach number in the wind tunnel was 2.5 with a total temperature of 1774 K. Methane gas was used as the coolant of the transpiration cooling. The structural integrity was retained during the test, with only limited ablation at the top of the strut. Numerical predictions of the bottom surface temperature distribution agreed reasonably well with the measurements. The numerical results showed that the surface temperatures at the leading edge of the strut were dramatically reduced by the transpiration cooling.

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    Titel :

    Investigation of a Porous Transpiration-Cooled Strut Injector

    Beteiligte:
    Huang, Z. (Autor:in) / Zhu, Y. H. (Autor:in) / Jiang, P. X. (Autor:in) / Xiong, Y. B. (Autor:in)
    Erschienen in:

    Journal of Propulsion and Power ; 31 , 1 ; 278-285

    Erscheinungsdatum :

    2014-11-07

    Format / Umfang :

    8 pages

    ISSN :

    0748-4658 , 1533-3876

    DOI :

    https://doi.org/10.2514/1.B35371

    Medientyp :

    Aufsatz (Zeitschrift)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Schlagwörter :

    Transpiration Cooling , Struts , Coolant , Leading Edges , Supersonic Wind Tunnels , Aerodynamics , Aerodynamic Heating , Scramjet Engines , Ablation , Temperature Distribution

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