A nonintrusive point collocation method is used to propagate parametric uncertainties of the flexible Common Research Model, a generic transport configuration, through the unsteady aeroelastic CFD solver FUN3D. A range of random input variables are considered, including atmospheric flow variables, structural variables, and inertial (lumped mass) variables. UQ results are explored for a range of output metrics (with a focus on dynamic flutter stability), for both subsonic and transonic Mach numbers, for two different CFD mesh refinements. A particular focus is placed on computing failure probabilities: the probability that the wing will flutter within the flight envelope.


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    Title :

    Uncertainty Quantification of the FUN3D-Predicted NASA CRM Flutter Boundary


    Contributors:

    Conference:

    SciTech Forum ; 2017 ; Grapevine, TX, United States


    Publication date :

    2017-01-09


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English







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