secondary flow

The Computational Method of Three Dimensional Flow Considering Secondary Flow in a Centrifugal Impeller

离心式叶轮计及二次流的三元流场计算方法

An Empirical Model for Calculating Secondary Flow Losses of Curved Blade Turbine Cascades

弯曲叶片涡轮叶栅二次流损失计算经验模型

Flow pattern in which primary and secondary school teachers in an increasingly diverse mobile market has become more sophisticated and mobile become increasingly frequent.

其中中小学教师流动方式日趋多样化，流动市场日益成熟、流动日趋频繁。

Influence of mixture ratio of primary flow on secondary combustion flame stability of ejector rocket motor

一次燃气混合比对引射火箭二次燃烧火焰稳定的影响

It was showed that the temperature and flow rate of the secondary coolant, and the initial temperature of the water in the tank directly influence the cooling charge performance of the ice storage tank, especially the temperature of the secondary coolant.

研究表明，载冷剂温度、流量及其冰槽内水体初始温度直接影响着蓄冰槽的蓄冷特性，其中载冷剂温度更为明显；

( b) The secondary flow at the cross section in the fore part of the inlet behaves as two counter rotating vortices: the clockwise one is stronger, governing the up outside corner, while the anti clockwise one is weaker, governing the bottom inside corner;

2进气道横截面二次流动在进口段表现为一反向旋转的对涡，对涡中顺时针的旋涡较强，控制了进气道的外上角，逆时针的较弱，控制了进气道的内下角；

The author who works as an education administration worker, for many years, in working practice, deeply feel that the flow of primary and secondary school teachers exist in a state of disorder and the related problems arise school, family, and social adverse effects.

笔者作为一名教育管理工作者，多年来，在工作实践中，深深的感受到，中小学教师在流动中存在的无序状态，以及由此产生的相关问题对学校、家庭、社会等方面的不良影响。

Study on Tip Clearance Flow of Turbine Blade-Endwall Secondary Flow Structure

透平动叶顶部间隙流的端壁二次流结构研究

The fluence of blade curving on end secondary flow at different incidence

不同冲角下叶片弯曲对端部二次流动的影响

The factors include customer, finance, work flow and growth, which can be further divided into secondary factors.

这些经营指标包括客户指标、财务指标、流程指标和成长指标，每个指标又细分成各个具体的二级指标。

In comparison with these of the straight cascade the blade positively curving reduces the quantity of the critical points, eliminates the upper passage vortex, and transform the closed separated flow of the secondary vortex along the blade tip suction side into the open separated flow.

与直叶栅比较，叶片正弯明显减少了壁面与横截面流场中奇点的数量，消除了上通道涡，并使叶顶吸力边的二次涡分离流动由闭式分离转变为开式分离。

Effect of Secondary Flow on Erosion from Solid Particles in 90 ° Curved Duct of Quadrate Section

弯管内二次流对固粒磨损壁面的影响

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。

Secondary flow loss holds a sizable part in total turbomachinery loss.

在叶轮机械的总损失中，二次流损失占了相当大的部分。

After the analysis of the factors affecting the secondary air flow, neural network PID control with a predictive model is designed, reducing the interference on the secondary air flow from pipe coupling and total air volume.

在分析了影响二次风流量的因素之后，设计了带有预测模型的神经网络PID控制，减小了管道耦合和总风量对流量控制的影响。

And it determines efficiency through compromising among factors such as shock wave, boundary layer, tip leakage, secondary flow and so on.

通过激波、附面层、叶尖泄漏流、二次流等因素对效率产生影响，这是个折衷过程。

A New Method of Improving a Diffuser with the Shroud Vane Effects of leading-edge modification on secondary flow in turbine cascades

无叶扩压器轮盖侧加装导叶的改进方法叶片前缘改型对涡轮叶栅二次流的影响

The Effect of a Secondary Air Injection Angle on the Deviation of Flue Gas Flow Rate at a Tangentially Fired Furnace Outlet

二次风喷射角度对切向燃烧炉膛出口烟气流量偏差的影响

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 in-cascade secondary flow exercises an influence on the cooling air distribution.

关于｛x／n｝的分布Air（初三适用）栅内二次流对冷气分布有影响。

The numerical results also show that the migration characteristics of the hot streaks are predominated by the relative slip velocity between hot fluid and cold fluid, secondary flow effect and buoyancy effect.

冷热流体间的滑移速度、二次流效应和浮力效应是影响热斑迁移特性的主要因素；

It is found that the tip clearance flow, blade backface clearance flow and backface cavity clearance flow interact with each other and the secondary flow structure in the blade passage is complicated.

结果发现，叶顶间隙流、叶片背部间隙流及轮盘背部间隙流相互作用，动叶通道内存在复杂的间隙二次流结构。

With different board positions, it is not in the light of free vortex that the through-flow velocity distributes, and the secondary flow velocities have similar distributions.

当两挡板开度变化时，蜗壳流道截面上通流速度的分布不同于自由涡流规律，二次流速度分量分布形态类似。

A Study on the Two-Dimensional Thrust Vectoring Nozzle with Secondary Flow Injection

基于次流喷射控制推力矢量喷管的实验及数值研究

In the snow melting season, the observed velocity distributions of the main flow and the secondary flow were similar to those of theoretical values.

经过观测数据与计算值的比较表明：融雪季节观测的主流和环流流速分布与理论计算值十分接近；

Computational investigation of secondary flow thrust vector control technology used in a convergent-divergent nozzle;

为了使导弹获得更高的机动性、敏捷性和导引精度，大多采用推力矢量控制方案。

Annular secondary flow at die entrance, which was perpendicular to sprue, was proved in the experiment.

实验证实PP-R熔体在入口区发生了垂直于主流道方向的环向次级流动。

Contrasts and analyses of flow fields in turbine stage with different slotting types are made to investigate the impact of slot at rotor tip on the turbine efficiency and secondary flow loss.

本文对几种形式开槽的涡轮级流场进行了对比分析，分析了动叶顶部开槽对涡轮级效率和二次流损失的影响。