风洞

According to the results of the tests, the unsteady aerodynamic was calculated at arbitrary angles of the tailplane and pitching frequency using the method of a data base model.

根据风洞实验结果，采用基于三角剖分数据库建模的方法，计算了任意平尾偏角和任意振动频率时的背景机动态气动特性，与实验结果比较表明，提出的有平尾偏角的建模方法能提供任意舵偏时的全机气动特性。

In order to improve the running stability of passenger train in strong crosswind ,its running condition on embankment while suffering from strong crosswind was simulated by using 3-D unsteady N-S equations and dynamic mesh technique,the relationships between aerodynamic force and train speed,crosswind speed and embankment tallness,and simulation result was compared with tunnel test result.

为了提高强横风作用下客运列车运行的稳定性，基于三维非定常方程，采用动网格技术，对强横风作用下的青藏线客运列车在路堤上运行情况进行了模拟，分析车速、风速及路堤高度与气动力之间的关系，并将计算结果与风洞实验结果进行对比。

Focused on different nose figures used in the s haped charge warhead and the target discrimination unit on side wall, the model was computed by CFD and tested by wind tunnel facilities.

针对带药型罩子弹药可能使用的头部外形，对子弹药简化模型进行了CFD计算和风洞测试。

Customers using LabVIEW to successfully scale performance from multi-core architectures include the NASA Ames Research Center for wind tunnel control, Max Planck Institute for nuclear fusion research, and Virginia Tech and TORC Technologies for developing autonomous vehicle vision intelligence.

利用LabVIEW成功地从多核架构获得性能提升的客户包括美国航天局Ames研究中心的风洞控制，Max Planck究所的核聚变研究，以及弗吉尼亚理工大学和TORC Technologies对自主汽车视觉智能的开发。

Effects of artificial reefs and their compounds on flow field have been studied through wind tunnel experiments under conditions of 6 m/s, 9 m/s and 12 m/s, on such single AR models with different shapes of cube, pyramid and triangular prism.

中文摘要：针对正方体、金字塔及三棱柱人工鱼礁模型，选取3个不同工况6 m/s、9 m/s和12 m/s，通过风洞实验研究不同类型人工鱼礁单体和不同组合正方体模型的流场效应。

The wind tunnel experiment,project argument,structure calculation analysis, calculation of the joint bearing capacity, calculation and experiment of the support-joint load carrying capacity of a super-span stretched stereoscopic steel pipe trussing are introduced- A normal usage period of the project after it had been built indicates that the major trussing and the supporting structure below have enough bearing capacity and deformability, and meet the demands of design code and actual usage.

摘要］介绍了某超大跨度伸臂立体管桁架结构的风洞试验、方案论证、结构计算分析、节点承载力验算、支座节点承载力验算和试验等。该结构建成后一段时期的正常使用表明，工程的主体桁架和下部承力结构具备较强的承载变形能力和可靠的安全度，满足设计规范和实际使用要求。

Keywords:super-span stretched stereoscopic steel pipe trussing; wind tunnel experiment; joint; prestressed; composite steel and concrete; diagonal column

关键词］超大跨度伸臂矩形立体管桁架；风洞试验；节点；预应力；型钢混凝土；斜柱

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。

The influences of turbulence and surroundings,especially the unbuilt East Tower, on the pressure fluctuation and RMS of pressure are also investigated inthis paper. Wind pressures for cladding design are presented. The main contributions and results of thisstudy are summarized as follows.

本文以高度432米的广州珠江新城西塔项目为工程背景，在风洞中研究了该建筑模型的风压分布特征，详细分析了不同流场湍流度、周边建筑尤其是待建的东塔对结构表面的平均、脉动和峰值风压的影响。

Most nations lack a single velodrome, let alone access to state-of-the-art wind tunnels.

很多国家连一个赛车场都没有，更不要说先进的风洞了。

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％。