Abstract
When aerodynamic braking works, the braking wings can change the flow field around the train, which may impact on the comfort and safety. Based on a sliding mesh , the pressure wave and flow field around high-speed trains with aerodynamic braking are analyzed. By comparing three typical intersection situations, the pressure wave of a high-speed train during braking (with or without aerodynamic braking) is studied. The analyses indicate that the pressure wave around the high-speed train body will change while using the aerodynamic braking, causing several pressure pulses on the surface of the crossing high-speed trains. The distances between the pressure pulses are equal to the longitudinal distances of the brake wings , but the magnitudes of the fluctuations are less than those induced by the head of crossing trains . During the crossing, a train without aerodynamic braking will not impact the crossing train.
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© 2018 Zhejiang University Press, Hangzhou and Springer Nature Singapore Pte Ltd.
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Wu, Ml., Zhu, Yy., Tian, C., Fei, Ww. (2018). Influence of Aerodynamic Braking on the Pressure Wave of a Crossing High-Speed Train. In: Fang, Y., Zhang, Y. (eds) China's High-Speed Rail Technology. Advances in High-speed Rail Technology. Springer, Singapore. https://doi.org/10.1007/978-981-10-5610-9_8
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DOI: https://doi.org/10.1007/978-981-10-5610-9_8
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