An assessment of a Hybrid RANS/LES (HRLES) approach for CL,max prediction is presented for the NASA High-Lift Common Research Model (CRM-HL). Both free air and wind tunnel configurations of the CRM-HL are investigated and the results are compared to the QinetiQ wind tunnel experiments and two other numerical approaches: Reynolds Averaged Navier-Stokes (RANS) and Wall-Modeled Large Eddy Simulations (WMLES). For the free-air configuration, HRLES is shown to address some of the known shortcomings with RANS and prevent inboard and outboard flow separation particularly in the region of CL,max and post-stall. To achieve these improvements over RANS, LES-appropriate grids and numerical discretizations are required. It was also found that when applying HRLES to a RANS best practice grid and numerics that the HRLES method significantly underperformed RANS. For the in-tunnel configuration, HRLES showed good agreement with the loads, surface pressure and oil-flow photographs obtained in the experiment. HRLES was able to improve upon the RANS simulations, which showed a sharp loss of lift at the two highest angles-of-attack due to large scale inboard and outboard separation on the wing, by correctly predicting the corner flow separation and showing remarkably close agreement in the flow topologies with the experiment.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Numerical Investigation of CL,max Prediction on the NASA High-Lift Common Research Model


    Contributors:

    Published in:

    Publication date :

    2023-02-01




    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Numerical Investigation of C L , max Prediction on the NASA High-Lift Common Research Model

    Browne, Oliver M. F. / Housman, Jeffrey A. / Kenway, Gaetan K. et al. | AIAA | 2023


    Predicting High-Lift Aerodynamics on NASA Common Research Model

    C. C. Kiris / A. S. Ghate / J. C. Duensing et al. | NTIS | 2022


    Predicting High-Lift Aerodynamics on NASA Common Research Model

    Cetin C Kiris / Aditya S Ghate / Jared C Duensing et al. | NTRS


    Large Eddy Simulation of the NASA High-Lift Common Research Model

    Goc, Konrad / Bose, Sanjeeb T. / Moin, Parviz | TIBKAT | 2022


    Large Eddy Simulation of the NASA High-Lift Common Research Model

    Goc, Konrad / Bose, Sanjeeb T. / Moin, Parviz | AIAA | 2022