Based on the three-dimensional Navier–Stokes (N–S) equations, using unsteady numerical technology, flow over a dual-spin projectile was simulated to investigate its aerodynamic characteristics during flight. Spin was achieved via the sliding mesh method. The influence laws of the aftbody spin rate, Mach number, and angle of attack on the aerodynamic characteristics of the projectile are presented, and the flow mechanisms for the laws are revealed. The results demonstrate that the influence of the aftbody spin rate on the normal force coefficient is very small, whereas, on the lateral force coefficient, it is larger. With the increase in the Mach number, the time-averaged normal force coefficient and lateral force coefficient increase, while the fluctuation quantities of the normal force coefficient and the lateral force coefficient decrease. The variation of angle of attack will influence the size, distribution, and interference effect of the shedding vortices.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Aerodynamic characteristics of a dual-spin projectile with canards


    Contributors:
    Liu, Xiaodong (author) / Wu, Xiaosheng (author) / Yin, Jintao (author)


    Publication date :

    2019-09-01


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Flight stability of a dual-spin projectile with canards

    Zhu, Dalin / Tang, Shengjing / Guo, Jie et al. | SAGE Publications | 2015




    Flight Stability of an Asymmetric Projectile with Activating Canards

    Cooper, Gene / Fresconi, Frank / Costello, Mark | AIAA | 2012