风洞

E. the discrete scheme of FBEM and the inner damping method of continuity equation, the author made numerical analysis of viscous flow field in cascade and cascade experiment in the experimental wind tunnel of Section 204 of Harbin Institute of Technology. The calculated results are in agreement with the experimental ones.

为进一步验证本文提出的有限边界元素法离散格式和连续方程的内部阻尼法的可行性，作者对叶栅内的粘性流场进行了数值分析，并与在哈尔滨工业大学204教研室的实验风洞上进行的叶栅实验结果进行了比较。

Parabolized stability equation of 3D disturbance wave was deducted under orthogonal curvilinear coordinates. The static pressure distribution on blade surface was measured in wind tunnel test, and this result was used for analysis of blade's flow stability.

推导出正交曲线坐标系下三维扰动波的抛物化稳定性方程，在风洞实验中测量叶栅叶片表面的静压分布，并结合测量结果对设计叶栅的流动稳定性进行特征值分析。

In this paper, the laser sheet technology is used to research the flow visualization of sections of double delta wing ,and some important results are introduced.

介绍了采用激光片光技术在风洞中进行双三角翼剖面流动显示研究的方法和主要结果。

The response of a delta wing in unsteady free stream was investigated in the unsteady wind tunnel of NUAA.

在南航非定常风洞中，详细研究了非定常自由流对三角翼气动特性的影响。

Experiments of a configuration with twin vertical tails/delta wing have been carried out in a wind tunnel of BUAA in order to understand the source of vertical tail buffet ing.

在北航的风洞中进行了双立尾-三角翼布局的立尾抖振实验，目的是研究立尾抖振产生的原因。

wind tunnel test ; parallel tube-manifold system ; dissipative model ; transfer function ; parametric analysis

为了适应以上需要，研究人员将多通道测压系统运用到风洞测压试验中[1]：连接模型表面测点的多个测压

The experiments were conducted in a wind tunnel at a location 50 ft downwind from the fan.

实验是在风洞中距离风机50英尺处进行。

When train traveled on embankment, the simulation results were compared with wind tunnel test results.

将客车在路堤上运行的数值模拟结果与风洞实验进行对比。

Based on wind tunnel test and theoretical analysis,the vibration mechanism, vibration shape,dynamic response and gust loading factor of the long-span grid roof of Qingdao gymnasiums subjected to wind excitation are analyzed systematically in this dissertation ,and some valuable results are obtained.

本文采用风洞模型试验和计算机数值计算相结合的方法，对青岛体育馆的风振机理、风振形态、风振响应以及风振系数进行了系统研究，取得了一些有意义的结论。

In the physical model experiment which studies the floating body in ocean engineering , two wind-filed simulation methods are discussed.

针对研究浮体运动的海洋工程物理模型试验中风场的模拟要求，对两种实验室模拟实现技术方案进行了阐述和对比，发现了开敞方案在风场质量和经济性方面都要优于风洞方案并推荐使用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。