The aerodynamic noise of high-speed train power car was investigated in this article. The full-scale power car was first modeled, and the external steady flow field was computed by a realizable k-ε turbulence model. The aerodynamic noise sources of the power car surface and the external transient flow field were then calculated by broadband noise source model and large eddy simulation (LES) model, respectively. The static pressures on the train surface were obtained from the results of the transient model. Considering the transient flow field, the far-field aerodynamic noise generated by the power car was finally derived from Lighthill-Curle theory. It was validated by means of on-line tests that have been performed along a real high-speed railway line. Through comparisons between simulations and measurements, it is shown that the simulation model gives reliable aerodynamic noise predictions. We foresee numerous applications for modeling and control of the aerodynamic noise in high-speed train.
PREDICTION AND VALIDATION FOR THE AERODYNAMIC NOISE OF HIGH-SPEED TRAIN POWER CAR
2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
The Numerical Prediction of the Aerodynamic Noise of the TGV POS High-Speed Train Power Car
Springer Verlag | 2012
|The Numerical Prediction of the Aerodynamic Noise of the TGV POS High-Speed Train Power Car
British Library Conference Proceedings | 2012
|High-speed train cowcatcher structure capable of reducing aerodynamic noise
Europäisches Patentamt | 2020
|Jet flow noise reduction system for aerodynamic noise of high-speed train
Europäisches Patentamt | 2023
|Development of low aerodynamic noise pantograph for high speed train
British Library Conference Proceedings | 1994
|