AbstractIn this paper, a reduced-order modeling approach based on computational fluid dynamics is presented for an elastic wing with control surfaces in the transonic regime. To treat the computational fluid dynamics grid around the geometrical discontinuities, due to the deflection of control surfaces, the constant volume tetrahedron method and the transpiration method are combined together without deforming the grid. Based on the input–output data from the computational fluid dynamics solver, one multiple-input/multiple-output discrete-time state-space model for the wing is identified via a robust subspace algorithm. For each control surface, one one-input/multiple-output discrete-time state-space model is identified using the same algorithm. With the precomputed state-space models for a few flight parameters, the generalized aerodynamic forces over a range of flight parameters can be computed by interpolating the output data. The methodology is applied to an elastic wing model with two control surfaces and the generalized aerodynamic forces are compared with the results from the computational fluid dynamics solver to validate the reduced-order modeling approach in transonic regime.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Reduced-Order Modeling of Unsteady Aerodynamics for an Elastic Wing with Control Surfaces



    Published in:

    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.50 Luftfahrzeugtechnik / 51.40 Werkstoffe für bestimmte Anwendungsgebiete / 55.60 Raumfahrttechnik
    Local classification TIB:    770/7040




    Reduced-Order Modeling of Unsteady Aerodynamics for an Elastic Wing with Control Surfaces

    Liu, Haojie / Huang, Rui / Zhao, Yonghui et al. | ASCE | 2016


    Reduced-Order Modeling of Hypersonic Vehicle Unsteady Aerodynamics

    Skujins, Torstens / Cesnik, Carlos | AIAA | 2010


    Reduced-Order Modeling of Hypersonic Vehicle Unsteady Aerodynamics

    Skujins, T. / Cesnik, C. | British Library Conference Proceedings | 2010


    Reduced order models in unsteady aerodynamics

    Dowell, Earl / Hall, Kenneth / Thomas, Jeffrey et al. | AIAA | 1999