查询词典 wind tunnel

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。

Methods For different body aerodynamic roll angles, proper wind-tunnel test schemes were selected and trigonometric series were used for aerodynamic interpolation.

按照不同的气动滚转角，进行合理有限的吹风，然后以三角周期函数进行插值。

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

Through the design detail that vertical plane back to the structure and operation of the wind-tunnel characteristics.

通过本设计，可以详细地了解到低速直流式风洞的结构及运行特点。

Chimera grid technique is applied to viscous flow analysis of the wall interference in the wind tunnel.

3根据嵌套网格技术的原理，结合风洞内流场的特点，将嵌套网格技术应用于风洞壁干扰的Navier-Stokes数值模拟，发展了相应的洞壁干扰分析软件。

Application of virtual instrument technology in wind tunnel measurement and control system is introduced.

概述了虚拟仪器技术在国内外风洞中的应用，针对正在建设中的我国第一座增压连续式超音速翼型风洞(NF-6风洞)，论述了采用虚拟仪器技术开发该风洞智能测控系统的实施方案。

The main products are; lipstick filling machine cold wind tunnel freezer platform.

主要产品有；口红灌装机冷风隧道冷冻平台。

Usually, the measurement and appraisal of aeroacoustics of cars are done in full scale automobile wind tunnel.

其测量及评价通常在全比例汽车风洞中进行。

The cowl was designed from first principles, tested and then refined in a wind tunnel at full scale.

基本原理设计，测试，然后在全尺寸风道内进行完善。

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％。