Paper Title:
The Application of Numerical Simulation Technology in the External Aerodynamic Noise Field of High-Speed Train
  Abstract

This paper utilized the Boundary Element Method (BEM) combined with the Computational Fluid Dynamics (CFD) based on Lighthill’s analogy in the high-speed train model, and converted the fluctuating flow pressure near the vehicle’s surface into the dipole source boundary condition in acoustics grid, eventually succeeded in completing the numerical simulation of aerodynamic noise field outside the high-speed train by introducing the dipole source boundary condition into the train BEM model. The results show that the main aerodynamic noise controlling area is 15-20 meters away from the track center line in the horizontal direction, and the Sound Press Level (SPL) is 63-72dB.

  Info
Periodical
Chapter
Chapter 2: Simulation and Engineering Optimization
Edited by
Di Zheng, Yiqiang Wang, Yi-Min Deng, Aibing Yu and Weihua Li
Pages
197-201
DOI
10.4028/www.scientific.net/AMM.101-102.197
Citation
Z. G. Zheng, R. X. Li, "The Application of Numerical Simulation Technology in the External Aerodynamic Noise Field of High-Speed Train", Applied Mechanics and Materials, Vols. 101-102, pp. 197-201, 2012
Online since
September 2011
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Price
$32.00
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