A new solution method is proposed to solve the one-dimensional transonic reacting flows of a scramjet combustor, which represents a mathematical singularity in the governing equations when the flow velocity approaches the speed of sound. The governing equations of the one-dimensional transonic flows are rewritten by using a variable transformation method and, in this way, the singularity of the governing equations is eliminated. Subsequently, a forward iterative shooting method is introduced to deal with the numerical problem appearing in the flow that includes finite-rate chemistry and high-temperature gas properties. Comparative analysis is performed to evaluate the method presented in this paper and previous methods. The results show that it has a wider applicability and better stability in solving the one-dimensional transonic reacting flows than previous methods. One major advantage of this method is that, as a result of the elimination of the singularity using variable transformation and the introduction of a forward iterative shooting method, a smooth and stable numerical calculation for transonic reacting flows can be ensured.


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    Titel :

    New Method for Solving One-Dimensional Transonic Reacting Flows of a Scramjet Combustor



    Erschienen in:

    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.50
    Lokalklassifikation TIB:    770/7040






    One Dimensional Modelling of a Scramjet Combustor Reacting Flow

    Scheuermann, T. / Chun, J. / von Wolfersdorf, J. et al. | British Library Conference Proceedings | 2008


    One-Dimensional Modelling of a Scramjet Combustor Reacting Flow

    Scheuermann, Tobias / Chun, Jaechul / von Wolfersdorf, Jens | AIAA | 2008