The advanced small gasturbines feature small mass flow ratio, short vanes and blades with low aspect, high second flow and blade tip leakage losses, and low efficiency.
先进的小发动机涡轮的流量小，叶片短，展弦比低，二次损失及叶尖漏泄损失大，效率低，温度高冷效差。
Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.
下游静叶干涉增加了动叶顶部间隙流的非定常波动强度和泄漏损失。
When the case is moving, the second leakage on the tip of splitter happens more easier, but the flow on the cascade tip is improved.
存在壁面移动时，二次泄漏更容易发生，但间隙流动得到改善；
The wake is mixing with the last rotor tip leakage vortex in the stator passage, leading to more substantial fluctuations in the flow field.
转子尾迹在静子通道内追赶上从前一转子叶片通道内下来的叶尖泄漏涡，二者的相互作用和掺混导致静子尖区更为复杂的二次流动。
The intensity of rotor wakes was reduced, flow separation on rotor suction side was suppressed and the tip leakage flow was suppressed periodically.
动叶尾迹强度明显减弱，叶背流动分离得到抑制，叶尖泄漏涡也得到了周期性的抑制。
The rotor tip leakage vortex has a stronger influence on the downstream endwall flow than the rotor wake.
同转子尾迹相比，转子叶尖泄漏涡对静子尖区的影响更为明显和深远。
The results showed that the main flow rolled up the leakage flow of the tip clearance and generated the tip leakage vortex.
结果表明：叶顶间隙气流与主流发生卷吸而生成泄漏涡。
The second part studies and analyzes the tip leakage flow and tip vortex.
第二部分对叶顶间隙泄漏流动和叶尖涡进行了研究分析。
The results show that the tip leakage flow vortex has a great effect on the blade aeroelastical stability and large tip leakage vorticity may restrain blade flutter.
计算结果表明，漏流涡对叶片气弹稳定性影响较大，大涡量的漏流涡能抑制叶片颤振发生。
The computed conclusion show that the magnitude of tip clearance has close relationship with the intension of tip leakage flow.
根据所测量得到的三维速度，清楚地展现了转子顶部流动的特性，特别是泄漏流对顶部流动的影响。
Tip leakage flow in a compressor which designed by use of Computer Aided design System was investigated by numerical method, for different tip leakage at design flow conditions.
采用离心压气机计算机辅助设计系统，设计了一个离心压气机叶轮，对这一叶轮在不同叶尖间隙下内部流场进行了数值计算。
Upstream stator-rotor interaction reduces the double leakage flow intensity in the rotor tip region.
上游静叶干涉减少了动叶顶部二次泄漏流强度。
In this paper, the influence of tip leakage flow on the 3-d viscous flow field is investigated for different blade tip gap shapes under the condition of rotating hub or stationary hub.
本文针对几种不同形态的叶栅顶部间隙，在环壁转动与静止的不同情况下，研究间隙内的泄漏流动对三维粘性流场的影响。
In this paper, the influence of tip leakage flow on the 3-d viscous flow field is investigated for different blade tip gap shapes under the condition of rotating hub or stationary hub.
本文针对几种不同形态的叶栅顶部间隙，在环壁转动与静止的不同情况下，研究间隙内的泄漏流动对三维粘性流场的影响。
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