Data underlying the publication: Wall shear stress measurement using a zero-displacement floating-element balance

The dataset includes direct measurements of the skin friction coefficient of the smooth-wall boundary layer using a zero-displacement floating element (FE) balance and oil film interferometry (OFI). The corresponding mean velocity profiles from hot-wire anemometry are also provided. The measurements cover a wide range of momentum thickness Reynolds numbers from 8800 to 35300. The experiment was designed to assess the performance of the newly developed FE balance, with OFI serving as the benchmark. For a detailed description of the experimental methods refer to Ferreira, M.A., Costa, P., Ganapathisubramani, G. (2016) Wall shear stress measurement using a zero-displacement floating-element balance. Exp. Fluids 57:90. https://doi.org/10.1007/s00348-024-03785-1.

本数据集收录了采用零位移浮体式测力天平（zero-displacement floating element (FE) balance）与油膜干涉法（oil film interferometry (OFI)）测得的光滑壁面边界层壁面摩擦阻力系数直接测量数据。本数据集同时提供了通过热线风速仪（hot-wire anemometry）测得的对应平均速度剖面。本次测量覆盖了8800至35300的宽动量厚度雷诺数范围。本实验旨在评估新研发的浮体式测力天平的性能，以油膜干涉法作为性能基准。有关实验方法的详细描述，请参见Ferreira, M.A., Costa, P., Ganapathisubramani, G. (2016) 《采用零位移浮体式测力天平的壁面切应力测量》, Exp. Fluids 57:90, https://doi.org/10.1007/s00348-024-03785-1。