It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.
它通常出现在射频，叶片通过频率和整流子刷频率，其高次谐波。
Relative eddy is a special relative flow within centrifugal blade passage, which is of prime importance in flow study of pumps.
轴向旋涡流动是离心叶轮叶片之间一种特殊的相对流动，其流动规律是离心叶轮正反问题研究的重要基础。
Some of new distributing features of the turbulent flow in the blade passage were found out, and a progress of the vibrating analysis methodology of the blades was achieved.
研究成果在叶道湍流及叶片流激振动机理方面具有新的发现和取得进展。
The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.
低比转速泵的高扬程决定了叶片流道内逆压梯度比较高，这种压力分布使得水流易于在叶片表面脱流分离，这一现象甚至在泵的设计点也难以避免。
In computation on blade grounding tool design in technical preparation, accurate blade passage data necessary for tool design has been obtained using free camber modeling technique of 3d CAD.
以生产准备中磨叶片工具的计算为例，使用三维CAD系统的自由曲面建模技术，精确计算出叶片工具设计中所需叶片通道数据。
In this paper, heat transfer and fluid flow in passage for trailing edge of turbine blade with pin-fin arrays is studied numerically.
本文应用湍流模型对涡轮叶片尾缘针肋通道的换热与流动进行了二维数值模拟研究。
The effects of corrosion and steam passage situations are the important factors in the design of steam turbine blade dynamic intensity.
介质腐蚀和通道状况的影响是汽轮机叶片动强度设计中主要考虑的因素。
The cooling technique of the blade inner passage plays a significant role in the design of blades for gas turbine.
叶片内部通道冷却技术在航空发动机叶片的设计中占有重要的位置。
Compared with conventional blade, the passage vortex structure is more stable in cascade with aft-loaded blade which secondary loss is small.
与常规叶片相比，二次流损失较小的后部加载叮型所构成的叶栅内的通道涡在结构上较为稳定。
Suppressed by the up passage vortex at upstream side of blade, the intensity and scale of the tip clearance leakage vortex is decreased.
渐缩型间隙在叶片前半轴弦受到上通道涡的抑制，减少了叶顶间隙泄漏涡的强度和范围；
The inner blade (4) in said passage cylinder (2) is with opposite screw direction of blade (1).
上述通水圆筒(2)内设有的内桨叶(4)与桨叶(1)的螺旋方向相反。
This blade can be used to produce counter pressure gradient at cascade passage end, reduce secondary flow loss, increase the efficiency of IP casing consequently, and improve the heat rate of units.
本文讨论了透平叶栅中的二次流产生的机理，并深入探讨了一种减少二次流损失的有效方法---叶片斜置和复合斜置技术，分析研究它对叶栅气动性能和级特性的影响。
Results show that incidence affects evidently not only the pressure profile, but also the flows behavior close to the blade profile, especially in the rear part of the cascade passage.
结果表明：冲角不仅对叶片表面的压力分布，而且对叶片附近的流动状态，特别是在叶栅流道的后半部，有很大的影响。
Results show that incidence affects evidently not only the pressure profile, but also the flows behavior close to the blade profile, especially in the rear part of the cascade passage.
结果表明：冲角不仅对叶片表面的压力分布，而且对叶片附近的流动状态，特别是在叶栅流道的后半部，有很大的影响。
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