The internal carriage of stores by the military aircraft is an option, particularly at high speeds, for a possible reduction in the aerodynamic drag and in the radar observability. Trade studies of this option, which include the safe separation of stores from their bays and aerodynamic complications of a cavity flow, require studying the aircraft and the stores together. With this motivation, the computer code, VISCC, is developed to solve the three-dimensional, Reynolds-averaged, unsteady, compressible, and complete Navier-Stokes equations. The store considered here for simulation is a missile configuration with four tail fins and an L-shaped offset sting. The missile is placed first directly above the opening of a rectangular box cavity, then submerged completely inside the cavity. The freestream Mach and the unit Reynolds numbers are 2.75 and 2.97 million per foot, respectively. The results of the time-accurate computations depict these complex flows and help understanding the interference effects. The time-averaged surface pressures compare favorably with the available wind tunnel data.


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    Title :

    Computing interference flows past cylinder-fin-sting assembly in and near a cavity


    Contributors:
    Baysal, O. (author) / Fouladi, K. (author) / Leung, R. W. (author) / Sheftic, J. S. (author)

    Conference:

    AIAA Applied Aerodynamics Conference ; 1990 ; Portland, OR, United States


    Publication date :

    1990-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Computing interference flows past cylinder-fin-sting assembly in andnear a cavity

    BAYSAL, O. / FOULADI, K. / LEUNG, R. et al. | AIAA | 1990


    Interference flows past cylinder-fin-sting-cavity assemblies

    BAYSAL, O. / FOULADI, K. / LEUNG,R. W. et al. | AIAA | 1992


    Interference flows past cylinder-fin-sting-cavity assemblies

    Baysal, O. / Fouladi, K. / Leung, R. W. et al. | NTRS | 1992



    Transonic sting interference

    ERICSSON, L. / REDING, J. | AIAA | 1979