The current experimental investigation explores the viscous/inviscid interaction of a supersonic turbulent boundary layer and a sharp fin-generated shock wave. The study examines the effect of Reynolds numbers on the fin-generated shock-wave/boundary-layer interactions (SBLIs) and the practical limits imposed on such scaling due to different test facilities. The present study involves a parametric variation of the incoming Mach number, fin angle of attack, and a wide range of unit Reynolds numbers in combination with advanced flowfield diagnostics. The results indicate that the interaction footprint is distinctly affected by the Reynolds number, though the effects are more prominent near the fin/surface junction and the outer edges of the interaction region. The results suggest that the effect of the Reynolds number on the SBLI is significantly reduced at higher Reynolds numbers. This sensitivity to Reynolds number is a function of the fin angle of incidence and freestream Mach number, with weaker strength interactions being more receptive to Reynolds number variation. Identical measurements carried out in facilities of different size compare favorably throughout the interaction region with Reynolds-based scaling; however, incoming boundary-layer thickness imposes limitations on the extent of the inception region and the onset of finite fin effects.

当前的实验研究探索了超音速湍流边界层和尖锐的鳍片产生的激波之间的粘性/无粘性相互作用。该研究检查了雷诺数对鳍产生的冲击波/边界层相互作用 (SBLI) 的影响以及由于不同的测试设施而对这种缩放施加的实际限制。本研究涉及传入马赫数、翅片攻角和各种单位雷诺数的参数变化，并结合先进的流场诊断。结果表明相互作用足迹明显受雷诺数的影响，尽管这种影响在鳍/表面交界处和相互作用区域的外边缘附近更为突出。结果表明，雷诺数对 SBLI 的影响在雷诺数较高时显着降低。这种对雷诺数的敏感性是翅片入射角和自由流马赫数的函数，强度相互作用越弱，雷诺数变化就越容易接受。在不同规模的设施中进行的相同测量在整个交互区域与基于雷诺的标度相比具有优势；然而，传入的边界层厚度对初始区域的范围和有限鳍效应的开始施加了限制。在不同规模的设施中进行的相同测量在整个交互区域与基于雷诺的标度相比具有优势；然而，传入的边界层厚度对初始区域的范围和有限鳍效应的开始施加了限制。在不同规模的设施中进行的相同测量在整个交互区域与基于雷诺的标度相比具有优势；然而，传入的边界层厚度对初始区域的范围和有限鳍效应的开始施加了限制。