挡风墙

DFQ抑尘挡风墙

DFQ Windbreak Wall for Dust Prevention

在横风环境中，声屏障客观上起到了挡风墙的作用。

In crosswind condition , noise barrier also acts as windbreak wall .

我们躺在沙滩上，由临时挡风墙遮着。

We lay on the beach , sheltered by an improvised windbreak .

挡风墙高度的研究

A Study on the Height of Wind Break Wall

加筋土式挡风墙优化研究

Study on the optimization of wind-break wall of the reinforced concrete shaped type

埃迪将为我们筑一道临时的挡风墙。

Eddie would build us a temporary windbreak .

挡风墙高度和设置位置对车辆气动性能的影响

Effect of the Vehicle Aerodynamic Performance Caused by the Height and Position of Wind-Break Wall

三跨空冷支架结构挡风墙阵风系数风洞试验研究

Wind tunnel test for gust factor of wind-break wall of three-span air-cooled condenser structure system

空冷支架结构挡风墙风压分布试验研究

Test Study on wind pressure distribution on wind-break wall of support structure system of air cooled condenser

针对环境风的影响，提出在空冷岛挡风墙下延方向加装防风网的措施。

Aiming at influences caused by ambient wind , the windshield was installed beneath the windbreak of air-cooled island .

本文对于挡风墙和接触网风场计算结果可用于大风区接触网的结构设计。

The calculated result about the wind-break wall and contact net can be used in configuration design of contact net .

上海地区露天堆料场内设置挡风墙的效果数值模拟

The Simulation Research on the Effectiveness of the Windproof Walls Built in Open-Air depots for Building Materials in Shanghai Areas

研究结果：确定了挡风墙最佳高度和最佳设置位置随路堤高度的变化规律。

Research result : the best height and position of wind - break varying with the height of embankment is established .

选择较好的挡风墙参数，不仅可以保证车辆倾覆稳定性良好，还可以确保接触网受力较小。

With good wind-break wall parameters , we can ensure the security of the train and the small aerodynamic force on contact net .

根据高速铁路桥梁带挡风墙的特点，引入空腔流动研究成果对车桥系统的绕流特性进行了理论分析。

Furthermore , the research results of driven cavity flows were applied to the analysis of flow characteristics around the vehicle-bridge system considering the wind-break wall effect .

然而在新疆百里风区，电气化改造后强风通过挡风墙在接触网处形成的风速和上吹角影响不容忽视。

But in the Xinjiang hundred-mile wind field , the change of wind velocity and elevation on the contact net is very important after the electrification transformation .

挡风墙模型采用目前常用于兰新线的土堤式挡风墙、对拉式挡风墙和钢筋混凝土挡沙墙。

The wind-break wall models use the earth type wind-break wall , the tendon type wind-break wall and reinforced concrete sand-break wall which are usually used on Lanchow-Sinkiang Railway .

结果表明：列车风对流场的影响主要表现在对列车表面附近、桥面、挡风墙间的局部流场的影响；

Calculation results show that the main effects of the train induced wind to the flow field are located in the local space near the train and above the deck , inside the wind-break walls .

在此基础上建立列车在有挡风墙和无挡风墙情况下的三维模型，通过计算分析获取列车三维湍流绕流下运动时的流场压力分布、速度分布、流迹线、气动力以及气动力系数。

After this , 3D models of trains with wall and without wall are built , and from the calculation results , pressure distribution , velocity gradient , path lines and aerodynamic forces of model trains in case of locomotion are analyzed and obtained .

通过分析铁路测风试验的结果，研究大风天气条件下，铁路安全运输的可行性和挡风墙的防风效果及有效遮蔽区的范围，进一步提高铁路运输效率。

Based on the data of anemometry experiment along the railway in Xinjiang , studied the feasibility of the safe railage in fresh gale weather and concluded the effect on preventing whole gale of windbreak and the range of defilade . It will profit to improve the efficiency of railage .