Dataset for paper titled Robust features of a turbulent boundary layer subjected to high-intensity free-stream turbulence

This dataset contains a matlab file required to reproduce all the figures in the above mentioned paper. If you use any of the data from this dataset, please cite the following article,R. Jason Hearst, Eda Dogan and Bharathram Ganapathisubramani, (2018), "Robust features of a turbulent boundary layer subjected to high-intensity free-stream turbulence", Journal of Fluid Mechanics. DOI: 10.1017/jfm.2018.511Here is further information on the dataset:The variables contained in the file are:B = log-law fitting parameter described in equation (1.1)
kappa = log-law fitting parameter described in equation (1.1)
delta = boundary layer thickness (units: meters)
lamb_inf = Taylor microscale in the free-stream (units: meters)
Lu_inf = integral lengthscale in the free-stream (units: meters)
nu = kinematic viscosity (units: m^2/s)
Re_lamb_inf = Taylor microscale based Reynolds number in the free-stream
Re_tau = friction velocity based Reynolds number
Re_theta = momentum thickness based Reynolds number
u2_inf = streamwise velocity variance in the free-stream
(units: m^2/s^2)
U_inf = streamwise mean velocity in the free-stream (units: m/s)
U_tau = mean friction velocity (units: m/s)
uU_inf = free-stream turbulence intensityFu = streamwise velocity flatness profiles
Su = streamwise velocity skewness profiles
U = streamwise mean velocity profiles (units: m/s)
u2 = streamwise velocity variance profiles (units: m^2/s^2)
y = wall-normal position for profiles (units: meters)E11_inf = free-stream spectra
kE11 = pre-multiplied spectra at all wall-normal positions for each case
(units of m^2/s^2)
Gg = global gain function
kpu = wall-unit normalised wavenumber for all spectra
ypu = wall-unit normalised wall-normal position for all spectraCoh_G = spectral coherence, equation (3.1) of the text, for case G
Coh_H = spectral coherence for case H
Coh_N = spectral coherence for case N
zetap_Coh_G = wall-unit normalised wavelength for spectral coherence case G
zetap_Coh_H = wall-unit normalised wavelength for spectral coherence case H
zetap_Coh_N = wall-unit normalised wavelength for spectral coherence case NFor all variables except for the coherence plots, the data is stored as
"cell" elements in MATLAB where the first element of the cell (index = 1)
is case A, the second element of the cell (index = 2) is case B, and so on.

本数据集包含可复现上述论文中所有图表所需的MATLAB文件。若使用本数据集的任意数据，请引用以下论文：R. Jason Hearst、Eda Dogan与Bharathram Ganapathisubramani（2018），《经受高强度自由流湍流的湍流边界层的鲁棒特征》，发表于《Journal of Fluid Mechanics》，DOI: 10.1017/jfm.2018.511。

以下为本数据集的补充信息：
文件内包含的变量如下：
B = 方程(1.1)所述的对数律（log-law）拟合参数
kappa = 方程(1.1)所述的对数律拟合参数
delta = 边界层厚度（单位：米）
lamb_inf = 自由流中的泰勒微尺度（Taylor microscale）（单位：米）
Lu_inf = 自由流中的积分长度尺度（integral lengthscale）（单位：米）
nu = 运动粘度（kinematic viscosity）（单位：m²/s）
Re_lamb_inf = 基于泰勒微尺度的自由流雷诺数
Re_tau = 基于摩擦速度（friction velocity）的雷诺数
Re_theta = 基于动量厚度的雷诺数
u2_inf = 自由流中的流向速度方差
(单位：m²/s²)
U_inf = 自由流中的流向平均速度（单位：m/s）
U_tau = 平均摩擦速度（单位：m/s）
uU_inf = 自由流湍流强度
Fu = 流向速度平坦度（flatness）分布曲线
Su = 流向速度偏斜度（skewness）分布曲线
U = 流向平均速度分布曲线（单位：m/s）
u2 = 流向速度方差分布曲线（单位：m²/s²）
y = 分布曲线对应的壁面法向位置（wall-normal position）（单位：米）
E11_inf = 自由流频谱（free-stream spectra）
kE11 = 所有工况下各壁面法向位置的预乘频谱
(单位：m²/s²)
Gg = 全局增益函数（global gain function）
kpu = 所有频谱所用的壁面单位归一化波数（wall-unit normalised wavenumber）
ypu = 所有频谱所用的壁面单位归一化壁面法向位置
Coh_G = 工况G的频谱相干性（spectral coherence，即文中方程(3.1)所述内容）
Coh_H = 工况H的频谱相干性
Coh_N = 工况N的频谱相干性
zetap_Coh_G = 工况G的频谱相干性所用的壁面单位归一化波长（wall-unit normalised wavelength）
zetap_Coh_H = 工况H的频谱相干性所用的壁面单位归一化波长
zetap_Coh_N = 工况N的频谱相干性所用的壁面单位归一化波长

除相干性绘图所用变量外，所有数据均以MATLAB的cell（单元格数组）形式存储，其中单元格的第一个元素（索引=1）对应工况A，第二个元素（索引=2）对应工况B，依此类推。