To create highly maneuverable projectiles, some physical control mechanism is needed that is capable of altering the projectile trajectory in a desired manner. The work reported here considers a small flow control device, termed a microspoiler system, located between the rear stabilizing fins of a projectile. Such a mechanism relies on the boundary-layer shock interaction between the projectile body, rear stabilizing fins, and microspoilers to provide a multiplicative effect on controllable forces and moments. To investigate performance of the microspoiler control mechanism, projectile trajectories with microspoilers were generated both computationally using a coupled CFD and rigid-body dynamic simulation and experimentally from spark range testing. Using this computational and experimental trajectory information, aerodynamic coefficients both with and without microspoilers were estimated and found to be in good agreement where the major effect of the microspoiler system is the addition of trim forces and moments along with a slight increase in axial forces. Additionally, control authority of a basic finned projectile equipped with an active microspoiler system is investigated for a typical direct-fire shooting scenario.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Aerodynamic Characterization of a Microspoiler System for Supersonic Finned Projectiles




    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    Local classification TIB:    770/7040
    BKL:    55.60 Raumfahrttechnik



    Aerodynamic Characterization of a Microspoiler System for Supersonic Finned Projectiles

    Scheuermann, Edward / Costello, Mark / Silton, Sidra et al. | AIAA | 2015



    Magnus Effect over Finned Projectiles

    Marc Pechier / Philippe Guillen / Roxan Cayzac | AIAA | 2001


    Transient resonance of rolling finned projectiles

    Ananthkrishnan, N / Raisinghani, S C / Pradeep, S | SAGE Publications | 1999


    Transient resonance of rolling finned projectiles

    Ananthkrishnan, N. | Online Contents | 1999