A scanning laser Doppler velocimeter was used to measure the axial velocity defect in the cores of trailing vortices behind a lifting airfoil of rectangular planform. Data were obtained at several different angles of attack and downstream distances ranging from 30 to 1000 chord lengths. The test was designed to obtain continuous data from the near field into the far field while removing uncertainties associated with the interpretation of data obtained by the hydrogen bubble technique. The measured velocities of V sub x/U sub infinity are compared with those predicted. The agreement is remarkably good over the entire range of downstream distances, which supports the credibility of calculating axial velocities using the results of Moore and Saffman (1973).


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    Titel :

    Axial flow measurements in trailing vortices


    Beteiligte:
    Ciffone, D. L. (Autor:in) / Orloff, K. L. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1974-08-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Axial Flow Measurements in Trailing Vortices

    D.L. CIFFONE AND K.L. ORLOFF | AIAA | 1974


    Two-point measurements in trailing vortices

    Miranda, Joseph / Devenport, William | AIAA | 1996



    Tubulent Trailing Vortices

    Devenport, W. J. / Rife, M. C. / Liapsis, S. I. et al. | British Library Conference Proceedings | 1994


    Turbulent Trailing Vortices

    Devenport, W. J. / Rife, M. C. / Liapis, S. I. et al. | British Library Conference Proceedings | 1994