Noise Influence of High-Speed Train Based on Air Dynamics

Abstract:

How to control aerodynamic noise of high speed motor train, this paper starts from the basic theory of hydrodynamics and acoustics, it adopts method of numerical simulation and applies Fluent and VirtuaUab Acousticsand software to make study on characteristics of aerodynamic noise for high speed motor train, the test results indicates that in the stable flow distribution, the baric gradient is relatively larger when its surface pressure is in area with large change in curve curvature, when it is in the area with even curve change, the baric gradient is relatively smaller. In different gradient, the train head, the maximum pressure and the maximum negative pressure ratio of air-conditioner air deflector predicate are in proportion to the square of train speed.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 265-269
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.265
• Online since: November 2014
• Authors: Xiao Qin Wang
• Keywords: Aerodynamics, High Speed Train, Noise, Simulation

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