wind tunnels

It is now common practice to test scale models of bridges in wind tunnels for aerodynamic resistance.

现在的通常作法是按比例缩小的桥梁模型放在风洞里检测它们的空气动力抵抗力。

Hypersonic wind tunnels operating at very low densities were developed starting in about 1960.

低密度超音速风洞大约开始发展于1960年.

It was built big to test full-size aircraft, where many wind tunnels are much smaller and test only small-scale models.

它建大考验全尺寸飞机，其中许多风洞试验是小得多，只有小规模的模式。

There are four major problems for transonic wind tunnels to generate transonic airflow: Solving the air-logged condition; Generating the equably low supersonic airflow; Reducing or eliminating the wall interference of subsonic airflow; Reducing or eliminating the influence of the shock waves' reflection.

跨声速风洞产生跨声速气流主要有四个问题：解决风洞的堵塞现象；产生均匀的低超音速流动；减少或消除亚音速洞壁干扰；减少或消除激波反射的影响。

Measurements of fiow unsteadiness and its influence on experimental data in high speed wind tunnels

高速风洞气流脉动的测量及其影响

Last week, local authorities said they wanted to build wind tunnels to funnel wind through the streets and blow away the bad air.

当地有关部门上周称，他们想建立风道，引导风从大街小巷通过并吹散雾霾。

This method is recommendable in comparison with others for the boundary layer thickness control on ground plates in wind tunnels.

与国内外现有的风洞地板边界层厚度控制方法相比，这种方法颇具特色。

Aeronautical engineers take their models into wind tunnels to measure performance factors.

航空学工程师将他们的模型放置在风道内来测量性能因素。

Stiffness Enhancement and Motion Control of a 6-DOF Wire-driven Parallel Manipulator with Redundant Actuations for Wind Tunnels

风洞试验绳牵引冗余并联机器人的刚度增强与运动控制

Designs and manufactures turbine engine test cells and wind tunnels.

设计生产涡轮发动机测试单元和风洞.

These experiments were conducted in the wind tunnels, on the rocket sled and by ejection from aircraft.

这些实验是用风洞、火箭车和空中弹射进行的。

Investigation on model dynamic stability derivatives test techniques in trans-, supers-, hypersonic wind tunnels

跨超、高超声速风洞模型动导数试验技术研究

Wind tunnels in general are used for testing purposes and aerodynamical optimization.

译文风洞大体上讲是用来得到测试试验结果和空气动力的最佳化。