The ice-cluster-based planar laser scattering technique, a high spatiotemporal resolution technique, is used to obtain the fine structures of dual-incident shock waves/turbulent boundary layer interaction. A double wedge produces these two incident shock waves. Three different interval distances between the incident shock waves are examined to obtain the influence of the second shock wave on the entire flow-field configuration. The overall flow pattern of dual-incident shock wave/turbulent boundary layer interaction flow is shown dominated by a quasi-triangular separation when the two shock waves intersect at the wall. As the interval distance increases, a trapezoid separation appears and finally no apparent flow separation occurs in the turbulent boundary layer.

中文翻译：

---

双入射冲击波/湍流边界层相互作用的流动模式

基于冰簇的平面激光散射技术是一种高时空分辨率技术，用于获得双入射激波/湍流边界层相互作用的精细结构。双楔产生这两个入射冲击波。检查入射冲击波之间的三个不同间隔距离，以获得第二个冲击波对整个流场配置的影响。当两个激波在壁面相交时，双入射激波/湍流边界层相互作用流的整体流动模式以准三角形分离为主。随着间隔距离的增加，出现梯形分离，最终在湍流边界层中没有出现明显的流动分离。