蜂窝面的阻尼作用会削弱预旋对密封内温升特性的影响；
The damping effect of the honeycomb can reduce the influence of the inlet preswirl on the total temperature difference.
该预旋角情况下，进气雷诺数对盘面平均努赛尔特数的影响大于旋转雷诺数。
The cooling flow rate have more effects on average nu number than rotating speed in this pre-swirl Angle.
在LL3-9型离心机的基础上，对其进行了改进，制作了预旋器等零部件。
Base on LL3-9 centrifugal, we have improved it and made a prerevolver.
本文介绍了离心泵节能的主要技术，并提出了前置导叶预旋调节的节能技术。
This paper introduces the main energy saving technologies of centrifugal pump. And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.
工作在较大转速下的迷宫密封系统可以通过施加合理的进口预旋来增强转子的稳定性。
The labyrinth gland system operating at a bigger rotating speed can enhance its rotor stability by applying a rational inlet pre-swirling.
通过实验对中等转速下带有微型涡轮(反预旋喷嘴)的旋转涡轮盘腔内流动特性进行了系统研究。
A very special rotating cavity with micro-turbine (de-swirl nozzles) was applied to investigate the flow characteristics inside the cavity under three mid rotating speeds.
同时，针对螺旋诱导轮的特殊结构，深入分析了它的预旋和预增压作用，以及自身良好的抗汽蚀性。
Also the inducer's pre-circumrotation, pre-promotion of pressure and anti-cavitation ability were studied.
在转子叶尖采用正预旋、低反力度的设计形式能有效地提高气动性能，如果想利用常规手段来设计下游静子则必须在叶根处引入反预旋；
The adoption of positive pre-swirl and low reaction degree increases the tip performance effectively, negative pre-swirl is required at hub for stator based on conventional design method;
为此，文章提出了以大截面塑料螺旋线取代钢丝螺旋线解决传热管壁的磨损问题，以预旋结构的管口轴承座-冲推动力轮来强化自转塑料螺旋线的清洗动力矩。
This paper proposes a new way, in which the plastic twisted strip-inserts are used to solve the wear and tear problem and the special inlet bearing enlargest.
最后对各种不同组分模拟合成气在三种多旋流模型燃烧室中进行预混燃烧实验研究。
At last this paper introduced the premixed combustion research performed in three multi-swirling models with different constituents of premixed gas.
多旋流合成气预混燃烧热声振荡的起振过程是一种非线性分义过程。
The oscillation start process of multi-swirling premixed combustion is a nonlinear bifurcation process.
多旋流合成气预混燃烧热声振荡的起振过程是一种非线性分义过程。
The oscillation start process of multi-swirling premixed combustion is a nonlinear bifurcation process.
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