高速铁路路堤大风测站合理布置研究  

Study on Rational Location of Wind Anemometer on High Speed Railway Embankment

作　　者：苏延文 曾永平[1] 徐昕宇 励吾千 SU Yanwen;ZENG Yongping;XU Xinyu;LI Wuqian(China Railway Eryuan Engineering Group Co. ,Ltd. , Chengdu 610031 ,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2018年第2期9-13,共5页High Speed Railway Technology

基　　金：国家自然科学基金高铁联合基金项目(U1334201)

摘　　要：为了探究高速铁路路堤周围大风监测站横向与高度方向合理的布置位置,针对典型双线路堤结构形式,采用流体计算软件FLUENT建立路堤无车与路堤有车两类分析模型,分别对四种不同坡度形式的路堤线路周围的流场分布进行数值模拟。研究结果表明:路堤无车时,背风侧的风环境优于迎风侧,大风监测站横向布置建议安装在迎风侧距路堤中心线4~7 m处,高度方向布置在距轨面1~3 m范围内;路堤有车模型中风速沿路堤的横向与高度的二维分布与无车模型呈现相同规律;列车的不同气动力随路堤坡度、风向角的变化趋势各不相同。In order to investigate rational location of wind anemometer in lateral and altitude-direction on high speed railway embankment, for typical double embankment structures, the fluid calculation software was adopted to establish two kinds of analysis model, including embankment structures with vehicle and without vehicle, the flow field distribution of embankment with four different slope forms was numerically simulated respectively. The research results show that when there is no vehicle on the embankment, wind environment of leeward side is better than that of the windward side, the transverse location of wind anemometer is recommended to install at 4 ？7 m away from the center line of embankment on the windward side,and the height direction is located at 1 ？3 m away from the rail surface. The wind speed two-dimensional distribution along the lateral and height of the embankment shows the similar law for both models with vehicle and without vehicle. The different aerodynamic forces of the train vary with the slope of embankment and the wind direction.

关 键 词：高速铁路 路堤 风速仪 合理布置 计算流体力学 

分 类 号：U270.11[机械工程—车辆工程]