The primary purpose of this investigation is to observe the effect of the pitching motion on the vortical flow structure and bursting of leading-edge vortices over a delta wing under the sideslip angle, β using a dye visualization technique. In the current work, a delta wing with a sweep angle of Λ = 70° was oscillated in upstroke and downstroke direction to be able to discover the influence of pitching motion on the flow characteristics of the delta wing. The values of mean angles of attack were selected as α_m = 25° and α_m = 35°, and the sideslip angle was altered from β = 0 to 16°. The delta wing oscillated with the various periods of T_e = 5 s, 20 s, and 60 s, respectively. Amplitude of motion was adjusted as α_o = ± 5°. It is found that the pitching motion of the delta wing under the sideslip angle β varies the location of the vortex bursting and vortical flow structure substantially.

这项研究的主要目的是使用染料可视化技术观察俯仰运动对侧翼角β下方三角翼上旋涡流动结构和前缘涡旋破裂的影响。在目前的工作中， 在上冲程和下冲程方向摆动了掠角为Λ = 70°的三角翼，以发现俯仰运动对三角翼流动特性的影响。攻击的平均角的值被选定为α_米 = 25°和α_米 = 35°，和侧滑角被改变从β  = 0〜16°。三角翼随着T _e的各个周期振荡 = 5 s，20 s和60 s。运动的幅度被调节为α _ö  =±5°。发现在侧滑角β下的三角翼的俯仰运动实质上改变了涡旋爆发和涡流结构的位置。