In the present treatment of the calculation of forces on a wing that is suddenly brought into motion at a constant speed, attention is given to the unsteady potential's contribution to the force balance. Total bound vorticity is produced at the initial impulse. The results obtained are independent of wing aspect ratio; as time increases, this effect on the drag force becomes smaller as the vortex emanating from the trailing edge is left behind. The second contributor to induced drag is the spanwise vorticity shedding that results from the spanwise load distribution of three-dimensional wings. This contribution grows with time as the length of the wake grows.


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    Title :

    Transient induced drag


    Contributors:
    Weihs, D. (author) / Katz, J. (author)

    Published in:

    Publication date :

    1986-07-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Transient induced drag

    WEIHS, D. / KATZ, J. | AIAA | 1986


    Wing Induced Drag

    Schmidt, Louis / Duren, R. | AIAA | 2002


    Minimum induced drag

    Taylor, J.L. | Engineering Index Backfile | 1942


    Viscous induced drag

    GREENE, GEORGE | AIAA | 1988


    Subsonic induced drag

    SANDERS, K. L. | AIAA | 1965