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A study on aerodynamic noise characteristics of a high-speed maglev train with a speed of 600 km/h
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Jie Zhang, Yuwei Wu, Jianyong Gao, Guangjun Gao, Zhigang Yang
Railway Sciences | 2023, 2(3) : 310 - 326
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Railway Sciences | 2023, 2(3): 310-326
• Research paper •
A study on aerodynamic noise characteristics of a high-speed maglev train with a speed of 600 km/h
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Jie Zhang, Yuwei Wu, Jianyong Gao, Guangjun Gao, Zhigang Yang
Affiliations
  • Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic and Transportation Engineering, Central South University, Changsha, China
  • Joint International Research Laboratory of Key Technologies for Rail Traffic Safety, Central South University, Changsha, China
  • National and Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Central South University, Changsha, China
Published: 2023-09-10 doi: 10.1108/RS-04-2023-0019
Outline
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Purpose

This study aims to explore the formation mechanism of aerodynamic noise of a high-speed maglev train and understand the characteristics of dipole and quadrupole sound sources of the maglev train at different speed levels.

Design/methodology/approach

Based on large eddy simulation (LES) method and Kirchhoff-Ffowcs Williams and Hawkings (K-FWH) equations, the characteristics of dipole and quadrupole sound sources of maglev trains at different speed levels were simulated and analyzed by constructing reasonable penetrable integral surface.

Findings

The spatial disturbance resulting from the separation of the boundary layer in the streamlined area of the tail car is the source of aerodynamic sound of the maglev train. The dipole sources of the train are mainly distributed around the radio terminals of the head and tail cars of the maglev train, the bottom of the arms of the streamlined parts of the head and tail cars and the nose tip area of the streamlined part of the tail car, and the quadrupole sources are mainly distributed in the wake area. When the train runs at three speed levels of 400, 500 and 600 km·h-1, respectively, the radiated energy of quadrupole source is 62.4%, 63.3% and 71.7%, respectively, which exceeds that of dipole sources.

Originality/value

This study can help understand the aerodynamic noise characteristics generated by the high-speed maglev train and provide a reference for the optimization design of its aerodynamic shape.

High-speed maglev train  /  Aerodynamic noise  /  Penetrable integral surface  /  Large eddy simulation  /  Speed level
Jie Zhang, Yuwei Wu, Jianyong Gao, Guangjun Gao, Zhigang Yang. A study on aerodynamic noise characteristics of a high-speed maglev train with a speed of 600 km/h[J]. Railway Sciences, 2023 , 2 (3) : 310 -326 . DOI: 10.1108/RS-04-2023-0019
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Funding
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  • the National Key Research and Development Program(2020YFA0710903)
  • the Financial Funding Project for Central Colleges and Universities(202045014)
  • the Science and Technology Research and Development Program of China State Railway Group Co., Ltd.(P2019J008)
Appendix
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Year 2023 volume 2 Issue 3
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Article Info
doi: 10.1108/RS-04-2023-0019
  • Receive Date：2023-04-11
  • Online Date：2026-06-11
  • Published：2023-09-10
Article Data
Affiliations
History
  • Received：2023-04-11
  • Revised：2023-06-02
  • Accepted：2023-06-07
Funding
the National Key Research and Development Program(2020YFA0710903)
the Financial Funding Project for Central Colleges and Universities(202045014)
the Science and Technology Research and Development Program of China State Railway Group Co., Ltd.(P2019J008)
Affiliations
    Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic and Transportation Engineering, Central South University, Changsha, China
    Joint International Research Laboratory of Key Technologies for Rail Traffic Safety, Central South University, Changsha, China
    National and Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Central South University, Changsha, China

Corresponding:

Guangjun Gao can be contacted at:
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栓菌属 Trametes 5 2.39
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