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

Abstract

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.2018.511 Here 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 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.

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