A new laminar–turbulence transition model γ R e ˜ θ t CF for capturing three-dimensional boundary layers involving crossflow-induced transition has been developed by extending the existing γ R e ˜ θ t transition model. In the present transition model, to resolve transition due to crossflow instability, the C1-criterion was evaluated locally using the Falkner–Skan–Cooke velocity profiles. Thus, only local flow quantities are used in determining the onset of three-dimensional transition. As a result, the extended γ R e ˜ θ t CF transition model is compatible and works well with modern computational fluid dyanmics flow solvers, particularly for those based on unstructured meshes, under massive parallel environment. The new transition model was implemented in a three-dimensional incompressible unstructured mesh flow solver. Validations of the new transition model were made for an infinite swept-wing configuration and an inclined prolate spheroid by comparing the results with those of the baseline γ - R e ˜ θ t model and experiment. It was found that the new transition γ R e ˜ θ t CF model works well by capturing the crossflow-induced transition inside three-dimensional boundary layers more accurately than the baseline γ - R e ˜ θ t model.


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    Titel :

    Enhancement of a Correlation-Based Transition Turbulence Model for Simulating Crossflow Instability


    Beteiligte:
    Choi, Jae Hoon (Autor:in) / Kwon, Oh Joon (Autor:in)

    Erschienen in:

    AIAA Journal ; 53 , 10 ; 3063-3072


    Erscheinungsdatum :

    2015-07-23


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Enhancement of a Correlation-Based Transition Turbulence Model for Simulating Crossflow Instability (AIAA 2014-1133)

    Choi, J. / Kwon, O.J. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2014


    Application of Crossflow Transition Criteria to Local Correlation-Based Transition Model

    Watanabe, Yuto / Misaka, Takashi / Obayashi, Shigeru et al. | AIAA | 2009


    Application of Crossflow Transition Criteria to Local Correlation-Based Transition Model

    Bode, Christoph / Friedrichs, Jens / Müller, Christoph et al. | AIAA | 2016


    Application of Crossflow Transition Criteria to Local Correlation-Based Transition Model

    Watanabe, Y. / Misaka, T. / Obayashi, S. et al. | British Library Conference Proceedings | 2009