华东交通大学学报Issue(1)：9-15,7.
基于CAA的高速动车组气动噪声仿真研究
Simulation Study on Serodynamic Noise of the High Speed Trains Based on CAA
摘要
Abstract
With train speeding up, the aeroacoustics of the high-speed train is becoming more and more important. Reducing aerodynamic noise has become one of the most significant factors to control the noise of the high-speed train. This paper adopted the hybrid method to study the aerodynamic noise around the high-speed train panto⁃graph. The feature of the pantograph's flow field dominates the generation of aerodynamic noise, therefore the flow field obtained by the RANS solution is firstly analyzed. Then the nonlinear acoustics solver (NLAS) approach is ad⁃opted to study the aerodynamic noise in the near field of the CRH3 high speed train. Finally, far field aerodynamic noise study is carried out by solving the Ffowcs-Williams/Hawking (FW-H) equation. By use of probes, the contri⁃bution of different parts of the pantograph for aerodynamic noise is discussed.关键词
高速动车组/气动噪声/受电弓/混合法Key words
high speed train/aerodynamic noise/pantograph/hybrid method分类
交通工程引用本文复制引用
王成强,邢海英,郑继峰..基于CAA的高速动车组气动噪声仿真研究[J].华东交通大学学报,2015,(1):9-15,7.基金项目
国家自然科学基金 （）
