2022
DOI: 10.1177/1475472x221093701
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Investigation on aerodynamic noise generated from the simplified high-speed train leading cars

Abstract: The aerodynamic noise behavior of flow passing the simplified leading car and nose car scale models of a high-speed train is investigated through the vortex sound theory and acoustic analogy approach. The unsteady flow developed around the geometries is solved numerically and the data are applied to study the near-field quadrupole sound source and calculate the far-field noise radiated. It is found that the turbulent flow developed around the leading car is characterized by multi-scale vortices separated from … Show more

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Cited by 4 publications
(4 citation statements)
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“…Using equation (15), SPL of the scale-down bogie model at 250 kmÁh À1 is predicted after calculating the distance between the receivers and the line source (r 0 ). The results of the numerical calculations at 250 kmÁh À1 are shown in Table 9.…”
Section: High-speed Aerodynamic Noise Prediction Of Local Noise Sourcesmentioning
confidence: 99%
See 3 more Smart Citations
“…Using equation (15), SPL of the scale-down bogie model at 250 kmÁh À1 is predicted after calculating the distance between the receivers and the line source (r 0 ). The results of the numerical calculations at 250 kmÁh À1 are shown in Table 9.…”
Section: High-speed Aerodynamic Noise Prediction Of Local Noise Sourcesmentioning
confidence: 99%
“…It is more practical to reduce the workload and improve the efficiency of the calculation by using the scale-down model simulation data to predict the aerodynamic noise of the fullscale vehicle body based on equation (15).…”
Section: Prediction Of Aerodynamic Noise Of Full-scale Model By Scale...mentioning
confidence: 99%
See 2 more Smart Citations