wind-fire angle

The influence of solidity and aspect ratio on power coefficient of H-type vertical axis wind turbine, and the change of attack angle with tip speed ratio were analyzed.

采用多流管模型分析了H型垂直风力机展弦比和实度对其功率系数的影响，并对叶片旋转过程中攻角随尖速比的变化进行了分析。

In this paper, the Mach number control system in NF-6 wind tunnel is introduced, especially in detail for the compressor rotary speed control sub-system, the compressor stator vane control sub-system and the second throat control sub-system. angle.

笔者介绍了NF6风洞马赫数控制系统的组成、特点及运行方式，对转速控制子系统、压缩机静叶角控制子系统、二喉道栅指控制子系统等进行了较为详细的介绍。

The Effects of Magnus Force on Sand Flux and Energy and Threshold Wind Velocity to Non-uniform Sand by the Common Tangential Angle

Magnus力对风沙流结构与能量的影响和以公切角表征的非均匀沙起动风速

Thermal noise and wind gust are the most significant random disturbances to radar angle tracking.

热噪声和阵风是雷达角跟踪系统中的两个主要随机干扰源。

A CRYOGENIC HIGH-REYNOLDS NUMBER TRANSONIC WIND TUNNEL WITH PRE-COOLED AND RESTRICTED FLOW The Effects of Tip End Ejection Area Ratio and Installation Angle on Heat Transfer of Orthogonally Rotating Rectangular Duct with Staggered Pin Fins

预冷节流式暂冲高雷诺数低温空气跨声速风洞方案正交旋转径向出流带扰流柱的矩形通道出口节流及安装角对传热的影响