Three-dimensional flowfield measurements within a separated swept shock wave/boundary-layer interaction are acquired using a four-camera tomographic particle image velocimetry system in the present study. The turbulent, Mach 2 incoming flow has a unit Reynolds number of $42.6\times {10}^6/\mathrm{m}$, and the shock interaction is produced by a sharp, unswept fin with a deflection angle of 15 deg from the freestream flow. Three volumes are examined to focus on different regions of the flow: 1) conically developed flow away from the wall spanning almost the entire interaction, 2) near the fin surface, a region that remains relatively unexplored, and 3) parallel to the floor in the near-wall region of the interaction. The flowfield is investigated in depth by visualizing velocity isosurfaces, with special emphasis on the growth of the interaction as one moves away from the interaction origin, which is a unique feature of swept interactions with strong crossflow. Initial results of the flowfield response to microjet actuation at four separate locations within the interaction are also discussed. The effect of introducing disturbances using upstream actuators is found to be the most prominent in the region near flow separation, where the streamlines are modified and overall separation size is reduced.

在本研究中，使用四相机断层扫描粒子图像测速系统在分离的扫掠冲击波/边界层相互作用中获得了三维流场测量值。湍流、马赫数为 2 的流入流的单位雷诺数为$42.6\times {10}^6/\mathrm{米}$，并且激波相互作用是由一个锋利的、未扫掠的翅片产生的，该翅片与自由流有 15 度的偏转角。检查了三个体积以关注流动的不同区域：1) 远离壁的锥形流动几乎跨越整个相互作用，2) 靠近鳍片表面，一个相对未开发的区域，以及 3) 平行于地板相互作用的近壁区域。通过可视化速度等值面对流场进行了深入研究，特别强调了当一个人远离相互作用原点时相互作用的增长，这是具有强横流的扫掠相互作用的独特特征。还讨论了在相互作用中的四个不同位置对微射流驱动的流场响应的初始结果。