Methods for reduction of velocities in trailing vortices of large aircraft are of current interest for the purpose of shortening the waiting time between landings at central airports. We have made finite-difference calculations of the flow in turbulent wake vortices as an aid to interpretation of wind-tunnel and flight experiments directed toward that end. Finite-difference solutions are capable of adding flexibility to such investigations if they are based on an adequate model of turbulence. Interesting developments have been taking place in the knowledge of turbulence that may lead to a complete theory in the future. In the meantime, approximate methods that yield reasonable agreement with experiment are appropriate. The simplified turbulence model we have selected contains features that account for the major effects disclosed by more sophisticated models in which the parameters are not yet established. Several puzzles are thereby resolved that arose in previous theoretical investigations of wake vortices.


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    Titel :

    Decay of Far-Flowfield in Trailing Vortices


    Beteiligte:
    Baldwin, B. S. (Autor:in) / Chigier, N. A. (Autor:in) / Sheaffer, Y. S. (Autor:in)

    Kongress:

    Atmospheric Flight Mechanics ; 1972 ; Palo Alto, CA, United States


    Erschienen in:

    AIAA Journal ; 11 , 12


    Erscheinungsdatum :

    1973-12-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Decay of Far-Flowfield in Trailing Vortices

    B. S. BALDWIN / N.A. CHIGIEX AND Y.S. SHEAFFER | AIAA | 1973


    Decay of trailing vortices

    Sherries, H.E. | Engineering Index Backfile | 1968



    Flowfield Prediction of Three-Dimensional Wing Trailing Vortices Using Advanced Turbulence Models

    Eaton, J. A. / O'Flaherty, M. P. / Advisory Group for Aerospace Research and Development; Fluid Dynamics Panel | British Library Conference Proceedings | 1996


    Rolling Moments in a Trailing Vortex Flowfield

    R. G. Schwind / J. N. Nielsen / M. F. E. Dillenius | AIAA | 1978