风洞

In the modeling of flight simulation, a six-degree-of-freedom whole non-linear equation and wind-tunnel tests data of MAV are used, the propeller twist and induced air flow on MAV are took into account.

在飞行动力学和运动学仿真中，采用了六自由度全量非线性方程，以微型飞行器的风洞吹风实验数据为依据，考虑了螺旋桨的气动扭矩、陀螺力矩和尾流对微型飞行器的影响，精确地反映了微型飞行器的实际运动特性。

The experimental investigation on the Rebuilding Project of Peacock Art Square in Kunming Expo Garden is presented in this paper.

介绍了昆明世博园孔雀艺术广场改建工程的风洞实验。

In addition, the paper introduces the seismic design of open top floor, the design of steel cover, the test of static bearing capacity of pile and the test of wind tunnel experiment.

此外，本文还介绍了空旷顶层的抗震设计：钢结构屋盖的结构设计；介绍了桩基静载试验和风洞试验的概况及其试验成果。

Minle County covers an area of 180,000 mu, including many cultural relic as ancient Yonggu City , ancient Bagua City , ancient tumulus group, Tongzisi Grotto, natural formed stone Buddha, Heifeng Cave , the Tomb of Goddess, etc, is located in the northern foot of the Qilian Mountain . Biandukou , the jaws of ancient Silk Road, and ancient Yonggu City with history more than thousands years are 10 km to south part of Minle County .

建设条件：民乐县地处祁连山北麓，古&丝绸之路&南路咽喉要地扁都口和具有数千年悠久历史的永固古城遗址位于民乐县城南 10公里处，包括永固古城、八卦古城、八卦汉墓群、童子寺石窟、自然生成石佛、黑风洞、娘娘坟等众多人文景观和扁都口独特的自然景观，总占地面积18万多亩。

Due to the area of coal dump site is very large in china, which results the expense and the timeperiod would be very long, as a result, this paper uses the calculated simulation method regardingthis problem.

由于在中国煤炭堆场的区域较大，采用风洞试验的方法研究防风网的抑尘效果所需费用及周期将会很大，本文拟采用数值模拟方法对此问题进行研究。

The results show that side force, lift and overturning moment obtained by simulation and by wind tunnel test are consistent. When train travels with certain speed, the aerodynamic force and overturning moment acting on passenger car running on bridge, embankment and flat will increase greatly as cross-wind becomes larger while those increase less when the train runs on cut. Under the condition of strong cross-wind, aerodynamic force and overturning moment acting on train traveling on bridge are the largest. So the train traveling on bridge tends to overturn compared with that traveling on other three kinds of railway conditions. Aerodynamic force and moment acting on train traveling on cut are the least.

研究结果表明：侧向力、升力和倾覆力矩数值模拟结果与风洞实验结果均吻合较好；车速一定时，随着侧风速度的增大，列车在桥梁、路堤、平地上运行所受气动力和倾覆力矩均急剧增加，而在路堑上运行所受气动力及力矩增加缓慢；当侧风速度一定的情况下，客车在高桥上运行所受到的气动力及力矩最大，因此，强侧风下列车在高桥上运行较容易发生倾覆事故；在路堑上所受到的气动力相对最小。

Finally, the techniques of time-serial measurement for transient flow field, three-dimensiqonal tomography, computer image processing and the theories above quantitative calculation studied in the thesis are used to measure the free jet flow field of real rocket, the flow field of bore nozlle, impingment field of exhusted jet, three-dimensional flow field in hypersonic shock tunnel, the flow field of boundary layer transition, explosive and combustion flow field of detonating powder and 3-D temperature field.

最后，利用本文所研究的瞬态流场时间序列定量测试技术，三维C.T技术，计算机图像处理技术和定量计算理论等对真实火箭燃气射流场，膛口流场，燃气射流冲击场，高超音速激波风洞中的三维流场，模型边界层转捩区流场，起爆药爆轰流场和燃烧场、三维温度场等进行测试，取得了一些国际上首创性的成果，并对实现上发现的一些新现象进行理论分析和解释。

Hope in a Desolate Mountain Scenic Area has three major landscape: wind-tunnel trench, ditch, General tomb, grass ditch.

灵空山风景区主要风景线有三条：风洞沟、将军墓沟、草沟。

That's a nice drawing, but the other thread it was posted in has a wind-tunnel model the drawing appears to be based on.

图不错。不过另一个话题里有个风洞模型，此图像是基于那个模型。

No one knows what dust-colored figures were suspended like draperies from the triangular opening.

三角通风洞的上面挂着几块说不上是什么的灰溜溜的破布，当作帘子。

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％。