It is noted that for a missile launched vertically, very high angles of attack are encountered during the early part of the flight at low speed. These angles of attack are essentially due to gusts and rotation in pitch of the missile. A comprehensive wind tunnel study was completed. The longitudinal stability results are straightforward and in good agreement with the computed values. However, at high angles of attack, a nonstationary rolling movement becomes evident. This is due to vortices issuing near the ogive cylinder junction. Putting longitudinal strakes on the missile alleviates the problem. The longitudinal stability improvement is shown through subsequent measurements.


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    Title :

    Aerodynamic Problems with a Missile at High Angle of Attack to an Incompressible Flow Problemes Aerodynamiques d'UN Missile a Grande Incidence en Incompressible


    Contributors:
    M. Mesniere (author) / G. Lacau (author)

    Publication date :

    1980


    Size :

    24 pages



    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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