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- suction secondary flow 抽吸二次流
- A new measure to reduce the secondary flow loss of the stator cascade of steam turbine governing stage by means of the boundary, layer suction near the suction side of endwall is presented. 提出一种在调节级静叶栅叶片吸力面侧端壁处抽吸低能流体至轴封漏汽腔室，以降低静叶栅二次流损失的方法。
- By means of numerical and experimental approaches the mechanism of restraining secondary flow by endwall boundary layer suction and the most effective suction location are investigated. 采用数值计算和实验研究的方法研究了端壁边界层抽吸抑制二次流的机理 及最佳抽吸位置，提出了在汽轮机调节级静叶棚和低压本级静叶栅中应用这一 技术的具体措施，并数值分析了改善叶栅工作特性的效果。
- Abstract： A new measure to reduce the secondary flow loss of the stator cascade of steam turbine governing stage by means of the boundary, layer suction near the suction side of endwall is presented. 摘 要： 提出一种在调节级静叶栅叶片吸力面侧端壁处抽吸低能流体至轴封漏汽腔室，以降低静叶栅二次流损失的方法。
- The secondary flow and vortexes are also produced in the dimple, but the influence of thesein the channel is small. 在窄缝流道的丁胞内同样会生成二次流、纵向涡旋和横向对涡,但其对主流区的影响较小;
- The effect of curvature, torsion and Dean number on secondary flow is discussed. 讨论了曲率、挠率、Dean数对二次流动的影响。
- Large spanwise heat transfer variation exists for stationary case due to the rib induced secondary flow. 肋片二次流使得通道各带肋面换热产生了巨大的差异。
- The details of the flow fields such as the backflow, vortex and secondary flow were revealed. 揭示了导叶内部回流、漩涡,以及出口流动滞止区、二次流等流动细节;
- Theexperimental results show that there are s trong secondary flow and a complex series of vortices in turbine cascade. 实验结果表明：涡轮叶栅中有强烈的二次流动，并存在复杂的涡系；
- Effects of blade negative bowing on secondary flow, total pressure loss and outlet flow angle were analyzed quantitatively, mechanism of the effects was discussed as well. 定量地分析了叶片反弯曲对叶栅出口二次流、总压损失和气流角的影响，并探讨了叶片反弯曲作用的机理。
- The nozzle cascade was designed for a Curtis stage using an advanced after-loaded flow control technique to reduce secondary flow losses. 该复速级喷嘴叶栅采用先进的后加载流动控制技术 ,以减弱叶栅的二次流损失。
- The numerical simulation technique is used to investigating the secondary flow in the different swept height blade cascades of a turbine last stage. 采用数值模拟技术详细地研究了不同掠高的某蒸汽轮机末级前掠叶片叶栅内部的二次流动。
- The results show that the secondary flow appears in the flow of the power-law fluid in annulus with the inner cylinder executing a planetary motion. 结果表明:幂律流体在内管做行星运动的环空中流动时出现二次流,且二次流分布与环空内管公转、自转速度的方向和大小以及环空偏心距有关。
- Particular attention was given to how Coriolis force and buoyancy force interact with rib induced secondary flow and their influences on heat transfer. 在径向入流通道中，哥氏力推动主流型向前缘偏移，但浮升力则使得主流型更加平缓。
- There are three types of low energe flow--vortex, secondary flow of corner and boundary-layer flow in the entrance region. 进口流场主要存在着卷流涡、角区二 次流和附面层等三种低能气流，压力损失主要集中在进口区；
- A particle image velocimetry system was used to measure the secondary flow in the volute cross-section and the blade wake flow. 用粒子图像速度场仪技术对叶片尾迹区及蜗壳出口横截面上的二次流做了详细的变工况测量与分析。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- The results show that endwall fence can control secondary flow by decreasing the influx of pressure side of horse vortex into passage vortex and forming reversed fence vortex. 结果表明,端壁翼刀主要通过阻断马蹄涡压力面分支汇入通道涡和有效产生反向翼刀涡来控制二次流。
- The effect of curvature, torsion and Dean number on secondary flow, the isoline of stream function, the distribution of axial speed and wall friction is discussed in detail. 详细讨论了曲率、挠率、Dean数对二次流动、流函数等值线和轴向速度的分布以及壁面摩擦力的影晌。
- According to the characteristic of the secondary flow of the oxygen turbopump,the nodes are distributed and the whole fluid flow network model is developed. 根据涡轮氧泵内流路的工作特点,对其进行节点划分,建立了完整的内流路拓扑网络。
