Data for: The onset of outer-layer self-similarity in turbulent boundary layers

<p>Averaged data from a direct numerical simulation of a zero pressure gradient turbulent boundary layer.</p>

<p>Files in 'zt_avg_txt.tar.gz' are in plaintext, column format and contain 1D data profiles of the spanwise & temporal (z,t) averaged flow field. 1x streamwise (x) profile and >200x wall-normal (y) profiles are included. Several base variables and pre-computed flow metrics are provided, as described in the header of each file. All physically relevant freestream parameters, as well as profile location data, are also present in the file header.</p>

The python3 plot script 'plot_zt_avg_txt_data.py' provides a basic example for how to load and plot the data.

本数据集包含零压力梯度湍流边界层（zero pressure gradient turbulent boundary layer）经直接数值模拟（direct numerical simulation）得到的平均流场数据。

压缩包"zt_avg_txt.tar.gz"内的文件均为纯文本列格式，存储了展向与时域（z,t）平均流场的一维数据剖面。数据集包含1个流向（x）剖面与200余个壁面法向（y）剖面。每个文件的文件头中均记载了所提供的若干基础流动变量与预计算流动特征量，同时包含所有具备物理意义的自由来流参数以及各剖面的位置信息。

附带的Python3绘图脚本"plot_zt_avg_txt_data.py"提供了加载并绘制该数据集的基础示例。