A transonic unsteady aerodynamic and aeroelasticity code has been developed for application to realistic aircraft configurations. The new code is called CAP-TSD which is an acronym for Computational Aeroelasticity Program - Transonic Small Disturbance. The CAP-TSD code uses a time-accurate approximate factorization (AF) algorithm for solution of the unsteady transonic small-disturbance equation. The AF algorithm is very efficient for solution of steady and unsteady transonic flow problems. It can provide accurate solutions in only several hundred time steps yielding a significant computational cost savings when compared to alternative methods. The new code can treat complete aircraft geometries with multiple lifting surfaces and bodies including canard, wing, tail, control surfaces, launchers, pylons, fuselage, stores, and nacelles. Applications are presented for a series of five configurations of increasing complexity to demonstrate the wide range of geometrical applicability of CAP-TSD. These results are in good agreement with available experimental steady and unsteady pressure data. Calculations for the General Dynamics one-ninth scale F-16C aircraft model are presented to demonstrate application to a realistic configuration. Unsteady results for the entire F-16C aircraft undergoing a rigid pitching motion illustrated the capability required to perform transonic unsteady aerodynamic and aeroelastic analyses for such configurations.


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    Title :

    Unsteady transonic flow calculations for realistic aircraft configurations


    Contributors:

    Publication date :

    1987-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Unsteady transonic flow calculations for realistic aircraft configurations

    BATINA, JOHN T. / SEIDEL, DAVID A. / BLAND, SAMUEL R. et al. | AIAA | 1989


    Unsteady transonic flow calculations for realistic aircraft configurations

    Batina, John T. / Seidel, David A. / Bland, Samuel R. et al. | NTRS | 1987


    Unsteady transonic flow calculations for realistic aircraft configurations

    BATINA, JOHN / SEIDEL, DAVID / BLAND, SAMUEL et al. | AIAA | 1987


    Unsteady transonic flow calculations for realistic aircraft configurations

    Batina, John T. / Seidel, David A. / Bland, Samuel R. et al. | NTRS | 1989


    Unsteady Transonic Flow Calculations for Realistic Aircraft Configurations

    J. T. Batina / D. A. Seidel / S. R. Bland et al. | NTIS | 1987