First investigations were made using nitrogen as flow medium in the plasma wind tunnel. The operation parameters were chosen to represent the stagnation region parameters as encountered at the wing leading edge of a HERMES type reentry vehicle at the peak heating trajectory point. Using these experimental results for a free jet in the facility, the code system was validated. Therefore, finite rate chemistry, thermal non-equilibrium effects and turbulence effects were investigated, all of these being implemented in the code system. The results were compared to a straightforward theory for turbulent free jets with good agreement. Thus, a simple and fast prediction procedure and a more accurate computational fluid dynamic (CFD) code system to compute the fine structure of the plasma wind tunnel flow-field were developed. The basic features of these methods, the results obtained for a nitrogen jet and the comparison to experimental data are presented here.


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    Titel :

    Numerical modeling of plasma wind tunnel flows


    Weitere Titelangaben:

    Numerische Modellierung von Strömungen im Plasmawindkanal


    Beteiligte:
    Messerschmid, E.W. (Autor:in) / Fasoulas, S. (Autor:in) / Gogel, T.H. (Autor:in) / Grau, T. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    8 Seiten, 8 Bilder, 27 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Numerical modeling of plasma wind tunnel flows

    Messerschmid, E.W. | Online Contents | 1995


    Numerical assessment of plasma wind tunnel flows

    Grau, T. / Messerschmid, E. | AIAA | 1996



    Numerical model for a plasma wind tunnel accelerator

    Sleziona, P / Auweter-Kurtz, M / Messerschmid, E | AIAA | 1995