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- W3165642020 abstract "It is known that bogie cavity of Shinkansen trains is a major source of low-frequency aerodynamic noise. To investigate the generation mechanism of low-frequency noise, we conducted CFD analysis using 4-car trainset model . The result shows that meandering flow attributed to the bogie cavity generate low-frequency aerodynamic sound around 6 to 10 Hz, and the pressure fluctuation around 20Hz within the bogie cavity was observed. We found, furthermore, that it is possible to reduce low-frequency aerodynamic sound by changing the shape of the front and back corners of the bogie cavity to a gentle slope, or by reducing the volume of the bogie cavity." @default.
- W3165642020 created "2021-06-07" @default.
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- W3165642020 date "2021-01-01" @default.
- W3165642020 modified "2023-10-18" @default.
- W3165642020 title "Investigation of Low-frequency Aerodynamic Sound Generated by Shinkansen Trains" @default.
- W3165642020 doi "https://doi.org/10.1299/jsmeenv.2021.31.130" @default.
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