通常采用另外一些目视法来确定非常定流断续失速和全失速的出现。
Additional visual observations are usually in order to establish the advent of unsteady flow, intermittent stall, and full stall.
对进口流场畸变失速颤振的影响进行了实验研究。
The effect of small radial stagnation pressure distortion of inlet flow on the stall flutter has been investigated experimentally.
本文对动失速型非定常分离流的主动控制方法在低速风洞中进行了实验研究。
An experimental investigation on the active control of dynamic stall type unsteady separated flow is carried out in the low speed wind tunnel using a phase averaged pressure measurement technique.
采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。
The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method.
②第一套方案对离心叶轮大叶片75%左右轴向弦长前尖部流场的改善是失速裕度提高的主要原因；
The main reason of extended stall margin was that about 75% axial chord of the tip flow field has been improved.
准确数值模拟机翼动态失速时非定常流场主要有湍流模型和数值算法两方面的难点。
The numerical simulation of the unsteady flow field around an oscillating airfoil is difficult because of the complexity of turbulence models and numerical methods.
翼型后缘出现的分离涡，导致翼型附近流场的流动失速。
Airfoil trailing-edge vortex separation occurs, resulting in movement of the flow field near the airfoil stall.
与扰流振幅相比，调节扰流振荡频率更能改善翼型深失速条件下的气动性能。
The frequency of oscillating excitation has more effect on improving aerodynamic performance of airfoil at large attack…
所发现的压气机端壁流态特征可用于发动机节流过程中工作点接近失速边界的程度的判定，具有一定的工程应用价值。
The observed end wall flow patterns can be used to assess the stall margins during engine throttling, and thus, it has certain value in engineering application.
通过分析双叶排的轴向间距对损失及整个流场结构的影响，解释了静叶排加入对旋转失速发生所起的抑制作用。
The influence of axial distance between two blade rows on the loss and the whole flow flied is analysed. Both calcula…
通过分析双叶排的轴向间距对损失及整个流场结构的影响，解释了静叶排加入对旋转失速发生所起的抑制作用。
The influence of axial distance between two blade rows on the loss and the whole flow flied is analysed. Both calcula…
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