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

Dataset DOI: 10.5258/SOTON/D0552

ReadMe Author: Bharathram Ganapathisubramani,, University of Southampton

This dataset supports the publication:
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.2018.511

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 intensity

Fu = 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 spectra

Coh_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 N


For 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.



Date of data collection: 2012-06-01 - 2017-06-30

Information about geographic location of data collection: University of Southampton, U.K.

Related projects:
WBT - Dr B Ganapathisubramani - ERC
B Ganapathisubramani - Towards drag reduction strategies for high Reynolds number wall-turbulence - EPSRC 30/06/14-28/02/19

Date that the file was created: July 2018