In this paper, the nonlinear harmonic method implemented in Fine/Turbo CFD code has been used to analyze the unsteady flow field in a transonic compressor. The numerical accuracy and computational efficiency of this method have been demonstrated by comparing its predictions with experimental data and conventional time-domain unsteady simulation for the test case. The rotor-stator interactions are studied in detail to improve the understanding of the flow physics involved. The deterministic stresses in the nonlinear harmonic method have also been compared to the time-domain unsteady postprocessing results to analyze distinct sources of unsteadiness. For the present case, the nonlinear harmonic method can not only capture the unsteady results satisfactorily, but also gain a significant computational advantage over conventional unsteady method.


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    Titel :

    Investigation of the unsteady flow of a transonic compressor using the nonlinear harmonic method


    Beteiligte:


    Erscheinungsdatum :

    2016



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    275/7040



    Investigation of the unsteady flow of a transonic compressor using the nonlinear harmonic method

    Zhang, Peng / Liu, Bo / Shi, Lei et al. | SAGE Publications | 2016



    Research on unsteady, nonlinear transonic flow

    Harris, W. L. / Whitlow, W., Jr. | NTRS | 1976



    Unsteady Aerodynamic Flow Phenomena in a Transonic Compressor Stage

    Chunnil Hah / Steven L. Puterbaugh / William W. Copenhaver | AIAA | 1997