Süpürme açisi küçük delta kanat üzerinde girdap oluşumu

In this work, vortical flow structure of a delta wing of low sweep angle was investigated both qualitatively and quantatively using dye visualization and a laser based Particle Image Velicimetry (PIV) technique. Firstly, the flow structure in close region of the stationary delta wing and formation of the vortex breakdown were studied by varying the angle of attack within the range of 7o? ? ?17o. Secondly, changes in flow structure were observed varying the yaw angle of the delta wing within the range of 0o? ? ?15o. In summary, patterns of time-averaged vorticity, < ? >, streamline, < ? >, distribution of velocity vectors,, and transverse velocity component, /U, for various angles of attack and yaw angles were obtained in order to reveal the flow mechanism in plan-view plane adjacent to the surface of the wing and over the crossflow planes.