Dataset underlying the publication: Response of a turbulent boundary layer to steady, square-wave-type transverse wall forcing

This dataset contains experimental data accompanying a publication investigating the efficacy of wall-based forcing of a zero pressure gradient turbulent boundary layer. Streamwise periodic forcing is applied experimentally by a series of 48 spanwise running belts, where we investigate the variation of wavelength between its near-optimum (as per the literature), sub-optimum, and post-optimum value. Multi-camera 2D-2C particle image velocimetry measurements were employed in the streamwise-wall-normal plane (x-y), capturing two fields-of-view (FOV), at the initiation of forcing (FOV1) and downstream (FOV2) where the control is fully established.All data underlying the figures, accompanied by the wind-tunnel conditions and relevant scaling parameters, such that they can be reproduced, will be published in .mat format for the individual figures. In addition, we publish the full dataset of the mean of the streamwise velocity component (U), and the higher-order streamwise (uu), streamwise-wall-normal (uv), and wall-normal (vv) Reynolds shear stresses, included in the data of fig7-8 and fig10The dataset is published for reproducibility, comparison, and to allow for future studies by other investigators.Under the CC BY 4.0 license, any reuse of this dataset should cite the original accompanying publication.

本数据集包含配套学术论文的实验数据，该论文研究壁面驱动对零压力梯度湍流边界层的调控效能。实验中通过48条展向运动带实现流向周期性驱动，本研究考察了驱动波长在近最优（基于已有文献）、次最优及超最优取值下的变化规律。研究采用多相机二维二分量粒子图像测速技术（2D-2C PIV），在流向-壁面法向平面（x-y平面）开展流场测量，分别采集驱动起始位置（视场1，FOV1）与控制完全建立后的下游位置（视场2，FOV2）两处视场的流场数据。所有支撑图表的实验数据、配套风洞实验条件及相关缩放参数均可复现，将以.mat格式按单张图表分别发布。此外，本数据集还包含支撑图7、图8及图10的完整流场统计数据，包括流向速度分量（U）的时均值，以及高阶流向脉动项（uu）、流向-壁面法向脉动项（uv）与壁面法向脉动项（vv）雷诺切应力分量。本数据集的发布旨在实现研究可复现性、供同行比对，并为其他研究者开展后续研究提供支撑。本数据集采用CC BY 4.0许可协议发布，任何二次使用均需引用本配套的原始学术论文。