READ ME File For 'Dataset supporting the publication " Effect of pressure gradient histories on turbulence characteristics of turbulent boundary layers over smooth and rough walls" (DOI:10.1103/t62m-8s9j) '. Dataset DOI: https://doi.org/10.5258/SOTON/D3766 Date that the file was created: 11/25 ------------------- GENERAL INFORMATION ------------------- ReadMe Author: Thomas Preskett, University of Southampton Date of data collection: 06/22-01/24 -------------------------- SHARING/ACCESS INFORMATION -------------------------- Licenses/restrictions placed on the data, or limitations of reuse: CC-BY Recommended citation for the data: Please use the above doi This dataset supports the publication: AUTHORS: T. Preskett, M. Virgillo, P. Jaiswal and B. Ganapathisubramani TITLE: Effects of pressure gradient histories on skin friction and mean flow of high Reynolds number turbulent boundary layers over smooth and rough walls JOURNAL: Physical Review Fluids PAPER DOI IF KNOWN: 10.1103/t62m-8s9j Links to other publicly accessible locations of the data: Links/relationships to ancillary or related data sets: -------------------- DATA & FILE OVERVIEW RW is used for rough wall data and SW for smooth wall data. The filenames contain both the surface, velocity and angle of attack depending on the case. This dataset contains the following folders and files: Mean_Pressure_Data Contains both the mean Cp and dCp/d(x/c), averaged across all speeds, along with the position of each tap relative to the leading edge of the aerofoil at 6.53m for the smooth wall. Turbulence_Profiles File name gives the surface, velocity and angle of attack at which the data was taken. Contained within each csv is wall position y (m), mean streamwise velocity U (m/s), mean streamwise Reynolds stress (m2/s2), delta (m), U99 (m), Utau (m/s), nu (m2/s), Cf, theta (m), deltastar (m), PI and Re_tau for a given case. SW_ZPG_Spectra Smooth wall ZPG spectra, file name gives the velocity at which the data was taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. RW_ZPG_Spectra - Rough wall ZPG spectra, file name gives the velocity at which the data was taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. SW_PG_Spectra Smooth wall PG spectra, file name gives the velocity and angle of attack at which the data was taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. RW_PG_Spectra Rough wall PG spectra, file name gives the velocity and angle of attack at which the data was taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. SW_PG_minus_ZPG_Spectra - Smooth wall spectra of PG ZPG case at 30 m/s, file name gives the angle of attack at which the data is taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. RW_PG_minus_ZPG_Spectra - Rough wall spectra of PG ZPG case at 15m/s, file name gives the angle of attack at which the data is taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. SW_minus_RW_Spectra Spectra of SW RW case at Retau 8000 for different PG histories, file name gives the angle of attack at which the data is taken. Contained within the file are three sheets that contain the yplus, lambda_plus and x_phi_plus grids in non-dimensional units. Datasets for each figure within the paper described above: Fig 2: SW Data Sets * -8?, -4?, 0?, 4? and 8? contained in dCpdxc_SW_h_0.5m.csv file in Mean_Cp_Data_SW RW Data Sets - * -8?, -4?, 0?, 4? and 8? contained in dCpdxc_RW_h_0.5m.csv file in Mean_Cp_Data_RW Fig 4: SW Data Sets * Mean streamwise Reynolds stress profiles for -8?, -4?, 0?, 4? and 8? at 30 m/s contained in SW_Vel_30_AOA_x.csv file in Turbulence_Profiles where x is the AOA of the case RW Data Sets - * Mean streamwise Reynolds stress profiles for -8?, -4?, 0?, 4? and 8? at 10 m/s contained in RW_Vel_10_AOA_x.csv file in Turbulence_Profiles where x is the AOA of the case Fig 4: SW Data Sets * ZPG spectra at 30 m/s contained in SW_ZPG_Spectra_Vel_30.xlsx in SW_ZPG_Spectra RW Data Sets - * ZPG spectra at 15 m/s contained in RW_ZPG_Spectra_Vel_15.xlsx in RW_ZPG_Spectra Fig 5: SW Data Sets * PG spectra at 30 m/s from SW_ Vel_30_AOA_x.xlsx in SW_PG_Spectra where x is the AOA of the case * PG - ZPG spectra at 30 m/s from SW_PG_sub_PG_Vel_30_AOA_x.xlsx in SW_PG_minus_ZPG_Spectra Fig 6: RW Data Sets * PG spectra at 15 m/s from RW_ Vel_15_AOA_x.xlsx in RW_PG_Spectra where x is the AOA of the case * PG - ZPG spectra at 30 m/s from RW_PG_sub_ZPG_Vel_15_AOA_x.xlsx in RW_PG_minus_ZPG_Spectra Fig 7: SW Data Sets * PG spectra at 30 m/s from SW_ Vel_30_AOA_x.xlsx in SW_PG_Spectra where x is the AOA of the case RW Data Sets * PG spectra at 10 m/s from RW_ Vel_10_AOA_x.xlsx in RW_PG_Spectra where x is the AOA of the case SW-RW data set * SW-RW at Retau 8000 found in Retau_8000_AOA_x in SW_minus_RW_Spectra where x is the AOA of the case Fig 8: Peak locations found from all speed and AOA for smooth and rough wall spectra found in SW_PG_Spectra and RW_PG_Spectra Fig 9: SW Data Sets * PG spectra at 30 m/s from SW_ Vel_30_AOA_x.xlsx in SW_PG_Spectra where x is the AOA of the case RW Data Sets * PG spectra at 10 m/s from RW_ Vel_10_AOA_x.xlsx in RW_PG_Spectra where x is the AOA of the case Fig 10: * All speed and AOA for smooth and rough wall spectra found in SW_PG_Spectra and RW_PG_Spectra Fig 11: SW Data Sets * Mean velocity profiles for -8?, -4?, 0?, 4? and 8? at 30 m/s contained in SW_Vel_30_AOA_x.csv file in Turbulence_Profiles where x is the AOA of the case RW Data Sets - * Mean velocity profiles for -8?, -4?, 0?, 4? and 8? at 10 m/s contained in RW_Vel_10_AOA_x.csv file in Turbulence_Profiles where x is the AOA of the case Fig 12: RW Data Sets - * Mean streamwise Reynolds stress profiles for -8?, -4?, 0?, 4? and 8? at 10, 20 and 30 m/s contained in RW_Vel_v_AOA_x.csv file in Turbulence_Profiles where x is the AOA of the case and v is the velocity.