A Computational Investigation of Aerodynamic Characteristics for Slender Bodies at High Angle of Attack

Sung-Ki Jung
Department of Mechanical and Aerospace Engineering, Gyeongsang National University

Sang-Eon Je
Department of Mechanical and Aerospace Engineering, Gyeongsang National University

Min-Ju Park
Department of Mechanical and Aerospace Engineering, Gyeongsang National University

Rho-Shin Myong
Department of Mechanical and Aerospace Engineering, Gyeongsang National University

Tae-Hwan Cho
Department of Mechanical and Aerospace Engineering, Gyeongsang National University

Abstract
The asymmetric leeward-side flowfields on slender bodies at high angle of attack are responsible for generation of side forces and phantom yaw moments at zero sideslip. A Navier-Stokes computational code is utilized for the investigation of mechanisms leading to the appearance of asymmetric vortices. In addition the steady side force behavior at different roll orientation of the tip is examined for the purpose of identifying the source of vortex flow asymmetries