Comparisons of calculated and experimental transonic unsteady pressures and airloads for four of the AGARD Two Dimensional Aeroelastic Configurations and for a rectangular supercritical wing are presented. The two dimensional computer code, XTRAN2L, implementing the transonic small perturbation equation was used to obtain results for: (1) pitching oscillations of the NACA 64A010A; NLR 7301 and NACA 0012 airfoils; (2) flap oscillations for the NACA 64A006 and NRL 7301 airfoils; and (3) transient ramping motions for the NACA 0012 airfoils. Results from the three dimensional code XTRAN3S are compared with data from a rectangular supercritical wing oscillating in pitch. These cases illustrate the conditions under which the transonic inviscid small perturbation equation provides reasonable predictions.


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    Titel :

    Experience with Transonic Unsteady Aerodynamic Calculations


    Beteiligte:
    J. W. Edwards (Autor:in) / S. R. Bland (Autor:in) / D. A. Seidel (Autor:in)

    Erscheinungsdatum :

    1984


    Format / Umfang :

    23 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Experience with transonic unsteady aerodynamic calculations

    Edwards, J. W. / Bland, S. R. / Seidel, D. A. | NTRS | 1984


    Experience with transonic unsteady aerodynamic calculations

    Edwards, J. W. / Bland, S. R. / Seidel, D. A. | NTRS | 1985