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- The flow field visualization of a straight HP trubine cascade is conducted in alarge-scale low-speed open-loop cascade heat transfer wind tunnel. 在大尺寸低速叶栅传热风洞中对一种高压涡轮导向叶栅的流场进行了流动显示实验研究。
- Research is conducted on the energy loss of flow around a cascade of guide vanes in a low speed wind tunnel numerically and experimentally. 低速回流式风洞中拐角部位的流动损失占总损失的比重很大,该位置导流片绕流的流动状况对于流动损失有明显的影响。
- The planes survived the wind tunnel test intact. 这些纸飞机在测试风道中丝毫未损。
- It is not correct to think of the wind tunnel having uniform flow. 设想风洞具有均匀的气流是不正确的。
- The process flows of metallic surface pretreatment and tunnel cascade phosphating were introduced respectively. 分别介绍了金属表面前处理和隧道式喷淋磷化工艺流程。
- The affect of endwall fences at different locations on compressor cascade loss and secondary flow were investigated through detailed experimental investigation in a low speed wind tunnel. 在低速大尺寸叶栅风洞上通过详细测量叶栅流场,研究了叶栅端壁上不同周向位置处加装端壁翼刀对压气机叶栅损失和二次流的影响。
- Setting very low speeds in a wind tunnel is always a vexatious problem. 在风洞中调出低风速来始终是一个麻烦问题。
- It should be noted that a balance is not always required in a wind tunnel. 应该指出,天平对风洞来说并非是绝对必须的。
- The aerodynamics characteristics of this airfoil is studied in wind tunnel. 进行了翼型的低速气动力性能研究,为附面层特性研究提供了方向。 结果表明,该翼型具有较好的升阻和俯仰特性,但失速特性差。
- The wind tunnel is produced under a technical cooperation agreement with Ford Co of US. 风洞机是根据与美国福特公司的技术合作协议生产的。
- Any flight test and wind tunnel correlation always suffers from a great number of unknowns. 在对飞行试验与风洞试验进行比较时总有大量的未知数。
- 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。
- The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range. 阻尼导数只能用风洞或弹道试验来确定。
- In the experiment under the 20 m/s wind tunnel conditions, the wind abrasion modulus is almost zero. 在每秒20米的风洞实验中,吹蚀模数几乎为零。
- In this paper, the initial stage in application of fuzzy logic to aircraft high-angle-of attack aerodynamics using wind tunnel test data is outlined. 本文概述最初阶段利用风洞试验数据应用模糊逻辑研究飞机大攻角空气动力学的情况。
- To investigate the aerodynamic performance effects of front guide blade to test cascade, low speed wind tunnel experiments were carried out on the two LGV cascades with and without front guide blade. 摘要为了考察导向叶片对实验涡轮导向器气动性能及涡系结构的影响,采用在实验叶栅前放置前置导叶的方法分别对原型和改型两种涡轮低压导向器进行了低速风洞实验。
- In the experiment under the 20 m/s wind tunnel conditions,the wind abrasion modulus is almost zero. 在每秒20米的风洞实验中,吹蚀模数几乎为零。
- Both types of tests have been explored in wind tunnels. 这两种形式的试验都已在风洞中进行过探索。
- NASA and Boeing said data from the flight are already being compared with data from wind tunnel tests. NASA和波音公司的数据说,从飞行正在与风洞试验数据。
- The design method has successfully solved the problem of design and matching of Swivel Table for Sand-Dirt Wind Tunnel. 所提出的设计方法成功地解决风洞转台的设计与匹配问题,有效地缩短了设计周期。