风洞

At last, the wind pressure time serials derived from the rigid model wind tunnel experiment were adopted to calculate the wind induced vibrating response of this long span roof and awning system in time domain.

最后，本文利用刚性模型风洞试验中测得的风压时程，对此曲面屋盖及雨蓬结构在时域内进行了风振响应分析，得到每个节点的加速度响应。

Proper orthogonal decomposition;large span roof;wind tunnel experiment ; reconstruction of pressure field;prediction of Pressure Field

本征正交分解法；大跨度屋盖；风洞试验；风压场重建；风压场预测

It was detailed to introduce the basic structures, operating principles and the technical characteristic of a small-scaled supersonic wind tunnel equipment.

详细介绍了小型超音速风洞装置的基本结构、工作原理和技术特性。

Based on the virtual prototype technology and simulative software platform Pro/E, the double rotating shaft supporting mechanism of wind tunnel testing model was designed and developed, and the mathematical model of angle control was established.

基于虚拟样机技术及仿真软件平台Pro/E，设计开发了风洞试验模型的双转轴支撑机构，建立了角度控制的数学模型，实现了机构的虚拟样机设计和运动学仿真，获取了被测试验模型运动情况的运动参数曲线，并对双转轴机构实施了干涉的动态检查，为双转轴机构设计方案的交流与评估，以及双转轴机构的制造与应用奠定了基础。

The effect of Gurney flap on double delta wing aerodynamics was conducted in low speed wind tunnel,the experimental results indicated that Gurney flap can promote the model s lift coefficient,maximum lift coefficient and lift-to-drag ratio at middle to high lift coefficient.

通过低速风洞实验研究了Gurney襟翼对双三角翼气动特性的影响，结果表明Gurney襟翼可以提高双三角翼的升力系数、最大升力系数以及中高升力系数情况下的升阻比。

By utilizing Tecplot software,Air tunnel test data of 200 km/h passenger train unit are processed in the form of cloud picture s in this paper.

文中介绍了 2 0 0km/h旅客动车组风洞试验表面压力分布的试验数据处理及如何利用Tecplot软件绘制成云图。

When the vocal folds are spread apart during quiet breathing, the larynx constitutes a tubular air tunnel with somewhat irregularly shaped walls.

当声带在安静呼吸时分开，喉头构成一个管状的风洞，其管壁有些不规则。

Finally,an applied example of this method in calibrations of the heat-flux gagesof the wind tunnel is presented.

最后，作为例子，给出了这种方法在风洞热流传感器校准试验中的应用。

A great deal of thought and study, testing in wind tunnels and the like has convinced airplane designers generally that what is known in the terminology of aeronautics as "parasite drag" was unavoidable.

大量的思考和研究，测试在风洞和类似深信飞机设计师普遍认为，什么是众所周知的，在航空术语为&寄生虫拖曳&是不可避免的。

The General Dynamics Model 401 had been studied in models, mockups, and wind tunnel testing dozens of different configurations before the final configuration was chosen.

模型中，研究一般的动态模型 401 过 mockups 与风洞测试几十种不同的配置之前选择是最后的配置。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失