READ ME File For 'Dataset for Pressure gradient history effects on integral quantities of turbulent boundary layers Experiments and data-driven models' Dataset DOI: 10.5258/SOTON/D3491 Date that the file was created: May, 2024 ------------------- GENERAL INFORMATION ------------------- ReadMe Author: Marco Virgilio, University of Southampton Date of data collection: March 2024 Information about geographic location of data collection: University of Southampton Related projects: EP/V05614X/1 and EP/W026090/1. -------------------------- SHARING/ACCESS INFORMATION -------------------------- License: CC BY Recommended citation for the data: Virgilio et al., 2025 This dataset supports the publication: AUTHORS: M. Virgilio, T. Preskett, P. Jaiswal, B. Ganapathisubramani TITLE: Pressure gradient history effects on integral quantities of turbulent boundary layers: Experiments and data-driven models JOURNAL: Journal of Fluid Mechanics -------------------- DATA & FILE OVERVIEW -------------------- This dataset contains: Cp_mean .mat file which contains the variables: eight_500mm (Cp=f(x) at AOA=8° and h=500mm) four_500mm (Cp=f(x) at AOA=4° and h=500mm) meight_400mm (Cp=f(x) at AOA=-8° and h=400mm) meight_500mm (Cp=f(x) at AOA=-8° and h=500mm) mfour_500mm (Cp=f(x) at AOA=-4° and h=500mm) mten_400mm (Cp=f(x) at AOA=-10° and h=400mm) mtweleve_400mm (Cp=f(x) at AOA=-12° and h=400mm) zero_500mm (Cp=f(x) at AOA=0° and h=500mm) tap_m (streamwise locations of the pressure taps) SW_PIV_Summary_0 .mat file which contains the variables: delta_m (TBL thickness = f(x) at AOA=0°) deltastar_m (displacement thickness = f(x) at AOA=0°) H (shape factor = f(x) at AOA=0°) theta_m (momentum thickness = f(x) at AOA=0°) U99 (free-stream velocity = f(x) at AOA=0°) X_m (streamwise locations of PIV at AOA=0°) SW_PIV_Summary_4 .mat file which contains the variables: delta_m (TBL thickness = f(x) at AOA=4°) deltastar_m (displacement thickness = f(x) at AOA=4°) H (shape factor = f(x) at AOA=4°) theta_m (momentum thickness = f(x) at AOA=4°) U99 (free-stream velocity = f(x) at AOA=4°) X_m (streamwise locations of PIV at AOA=4°) SW_PIV_Summary_8 .mat file which contains the variables: delta_m (TBL thickness = f(x) at AOA=8°) deltastar_m (displacement thickness = f(x) at AOA=8°) H (shape factor = f(x) at AOA=8°) theta_m (momentum thickness = f(x) at AOA=8°) U99 (free-stream velocity = f(x) at AOA=8°) X_m (streamwise locations of PIV at AOA=8°) SW_PIV_Summary_-4 .mat file which contains the variables: delta_m (TBL thickness = f(x) at AOA=-4°) deltastar_m (displacement thickness = f(x) at AOA=-4°) H (shape factor = f(x) at AOA=-4°) theta_m (momentum thickness = f(x) at AOA=-4°) U99 (free-stream velocity = f(x) at AOA=-4°) X_m (streamwise locations of PIV at AOA=-4°) SW_PIV_Summary_-8 .mat file which contains the variables: delta_m (TBL thickness = f(x) at AOA=-8°) deltastar_m (displacement thickness = f(x) at AOA=-8°) H (shape factor = f(x) at AOA=-8°) theta_m (momentum thickness = f(x) at AOA=-8°) U99 (free-stream velocity = f(x) at AOA=-8°) X_m (streamwise locations of PIV at AOA=-8°) Uinf_PIV0 .mat file which contains the variables: U_inf (free-stream velocity = f(x) at AOA=0°) X (streamwise locations of PIV at AOA=0°) Uinf_PIV4 .mat file which contains the variables: U_inf (free-stream velocity = f(x) at AOA=4°) X (streamwise locations of PIV at AOA=4°) Uinf_PIV8 .mat file which contains the variables: U_inf (free-stream velocity = f(x) at AOA=8°) X (streamwise locations of PIV at AOA=8°) Uinf_PIV-4 .mat file which contains the variables: U_inf (free-stream velocity = f(x) at AOA=-4°) X (streamwise locations of PIV at AOA=-4°) Uinf_PIV-8 .mat file which contains the variables: U_inf (free-stream velocity = f(x) at AOA=-8°) X (streamwise locations of PIV at AOA=-8°) Cf_0 .mat file which contains a single array whose elements are (u_tau/U_(inf,0))^2 for the case AOA=0° Cf_4 .mat file which contains a single array whose elements are (u_tau/U_(inf,0))^2 for the case AOA=4° Cf_8 .mat file which contains a single array whose elements are (u_tau/U_(inf,0))^2 for the case AOA=8° Cf_minus4 .mat file which contains a single array whose elements are (u_tau/U_(inf,0))^2 for the case AOA=-4° Cf_minus8 .mat file which contains a single array whose elements are (u_tau/U_(inf,0))^2 for the case AOA=-8° Re_0 .mat file which contains a single array whose elements are (x*U_(inf,0))/ni for the case AOA=0° Re_4 .mat file which contains a single array whose elements are (x*U_(inf,0))/ni for the case AOA=4° Re_8 .mat file which contains a single array whose elements are (x*U_(inf,0))/ni for the case AOA=8° Re_minus4 .mat file which contains a single array whose elements are (x*U_(inf,0))/ni for the case AOA=-4° Re_minus8 .mat file which contains a single array whose elements are (x*U_(inf,0))/ni for the case AOA=-8° and codes: PGTurbo_calibration pyhton code for jupyter notebook which calibrate the model with the acquired data PGTurbo_main phyton code for jupyter notebook which uses an implicit solver to predict the TBL behaviour at different PGs arrays pickle file generated by PGTurbo_calibration which contains the calibration info to be given to PGTurbo_main -------------------------- METHODOLOGICAL INFORMATION -------------------------- Methods for processing the data: The data is already processed into arrays. The researchers in use of the collected data can use the shared codes to process the data or use the single .mat files to have access at the raw variables. Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers: Matlab2024a and Jupyter Notebook Environmental/experimental conditions: Particle image velocimetry, Pitot tube, Hot-wire Anemometry, Oil Film Interferometry People involved with sample collection, processing, analysis and/or submission: M. Virgilio, T. Preskett, P. Jaiswal