高速流线型车辆稳态下速度风噪声源数值分析

Numerical Analysis on Pneumatic Noise Sources on Surface of Streamline High-speed Train on Open-wire in Steady Flow Field

利用流体数值模拟方法,分析了流线型高速车辆在稳态下的压力速度耦合分布,以及在空气动力学特征下的噪声源分布及强度.对计算结果进行分析,讨论了车体表面不同部位气动噪声源产生的原因,以主动式设计方法解决气动噪声问题,控制环境噪声污染.

This paper utilizes the CFD method on the streamline high-speed train on open-wire to predict the location and strength of acoustic sound sources, and analyze the causation of the acoustic sound sources on different parts of the train after computation results are analyzed. Initiative design method is used to control the noise environment pollution in the initial stages of high-speed train design.