The accurate prediction of transitional flows is crucial for the industrial turbomachinery design process. While a Reynolds-averaged Navier–Stokes approach inherently brings conceptual weaknesses, large-eddy simulation will still be too expensive in the near future to affordably analyze complex turbomachinery configurations. We introduce a transitional delayed detached-eddy simulation (DDES) model, namely, DDES- γ , and analyze the numerical results of the compressor cascade V103. A comparison with the fully turbulent DDES approach emphasizes the benefit of coupling DDES with a transition model. Issues with undesired decay of modeled turbulent kinetic energy in the freestream are improved when running DDES- γ in combination with the synthetic turbulence generator method. The best results for DDES- γ are obtained when changing the inviscid flux solver blending from dynamic to constant mode. We show that DDES- γ is capable of predicting the transitional flow through a linear compressor cascade, but we also critically discuss the general concept and results.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Transitional Delayed Detached-Eddy Simulation for a Compressor Cascade: A Critical Assessment


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.07.2024




    Medientyp :

    Aufsatz (Konferenz) , Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Transitional Delayed Detached Eddy Simulation of Multielement, High-Lift Airfoils

    Coder, James G. / Ortiz-Melendez, Hector D. | AIAA | 2018


    Transitional Delayed Detached-Eddy Simulation of Multielement High-Lift Airfoils

    Coder, James G. / Ortiz-Melendez, Hector D. | AIAA | 2019


    Complicated flow in tip flow field of a compressor tandem cascade using delayed detached eddy simulation

    ZHANG, Botao / MAO, Xiaochen / LIU, Bo et al. | Elsevier | 2024

    Freier Zugriff

    Transitional Delayed Detached Eddy Simulation of Multielement, High-Lift Airfoils (AIAA 2018-2846)

    Coder, James G. / Ortiz-Melendez, Hector D. | British Library Conference Proceedings | 2018