READ ME File For "The distribution of pantograph aerodynamic noise on train external surfaces and the influence of flow " Dataset DOI: 10.5258/SOTON/D2033 ReadMe Author: David Thompson, University of Southampton, ORCID ID: 0000-0002-7964-5906 This dataset supports the publication: AUTHORS: Hui Li, Xiaowan Liu, David Thompson, Giacomo Squicciarini TITLE: The distribution of pantograph aerodynamic noise on train external surfaces and the influence of flow JOURNAL: Applied Acoustics PAPER DOI: https://doi.org/10.1016/j.apacoust.2021.108542 This dataset contains: Data supporting figures The figures and corresponding data files are as follows: Figure 3. Predicted sound power (A-weighted) from the pantograph and contributions from each part, 290 km/h. FILE: figure3.txt Figure 8. Comparison between predictions and measurements on scale model train. (a) 1250 Hz, (b) 2000 Hz, (c) 3150 Hz, (d) 5000 Hz. FILE: fig8_1.txt FILE: fig8_2.txt FILE: fig8_3.txt FILE: fig8_4.txt Figure 9. Thickness of the turbulent boundary layer and the velocity profile at 40 m and 160 m from the front of the train for a train speed of 80 m/s (about 290 km/h). FILE: figure9.txt Figure 12. SPL on the train roof at different frequencies for maximum flow speed 80 m/s, normalised to the same value at x = 0. FILE: figure12.txt Figure 13. Comparison of SPL on the train roof at three example frequencies. (a) 200 Hz, (b) 500 Hz, (c) 1600 Hz. FILE: fig13_500hz_80mps.txt FILE: fig13_500hz_withflow.txt FILE: fig13_500hz_withoutflow.txt FILE: fig13_500hz_withoutflow.txt FILE: fig13_500hz_withflow.txt FILE: fig13_1600hz_withoutflow.txt FILE: fig13_1600hz_withflow.txt Figure 15. Overall A-weighted sound pressure level from the pantograph on the train roof along the centreline at 290 km/h. FILE: figure15.txt Date of data collection: January 2019 to October 2021 Information about geographic location of data collection: University of Southampton, U.K. Licence: Creative Commons Attribution 4.0 Related projects: None Date that the file was created: March, 2022