In need of special is that the liquid particles in the body within the flow rate is less than the circumference of a circle impeller speed.
需要特别指出的是，液体质点在泵体流道内的圆周速度小于叶轮的圆周速度。
Through wind standard tunnel test, linear relationship is found out between the impeller speed and the air speed of refitted air speedometer.
经风洞标定试验，改造后的风速表叶轮转速与风速有良好的线性关系。
This pump impeller blades can be adjusted automatically to adapt to speed, fluid viscosity and pressure.
这种泵的叶轮叶片可以自动调节来适应转速、流体粘度和不同压力。
The calculating method of viscous end speed defective value & end width for centrifugal compressor impeller is given.
给出了离心压缩机叶轮粘性尾迹速度亏缺值及尾迹宽度的计算方法。
Relative eddy is a special flow phenomenon, occurring within centrifugal impeller passage. Its speed distribution is closely related to impeller characteristics.
轴向旋涡流是离心叶轮内特殊的流动现象，它的速度分布规律与叶轮特性关系密切。
Particularly necessary to point out that the liquid in the pump body mass flow rate of less than the circumference of the circumferential speed of the impeller.
需要特别指出的是，液体质点在泵体流道内的圆周速度小于叶轮的圆周速度。
Under the same impeller outlet speed, the flow speed of blade diffuser is faster than the vaneless one. The average flow field at impeller outlet trends to uniform.
在相同叶轮出口速度下，叶片扩压器比无叶扩压器中气流速度下降迅速，叶轮出口处平均流场趋于均匀。
In general, a new formula is presented for computing specific speed with impeller geometric parameters.
总之，本文初步提出了用叶轮几何参数计算比转数的公式。
AR816 anemometer with ultra small impeller integrally anemometer, maximum, current value, average wind speed, wind temperature, wind velocity response of analog display, pocket-sized portable model.
AR 816风速计具有超小型叶轮一体式风速计，最大、当前值、平均风速、风温测量，风速反应模拟条显示，袖珍便携机型。
Changing or cutting the impeller, adjusting the angles of variable blades, changing the angles of pressure expander and variable speed of fans may be adopted for the energy-saving of fans on hand.
对现有风机节能改造可采用更换或切削叶轮、调整可调叶片角度，改变扩压器叶片角度以及风机变速运行等措施。
Especially the flow of compound impeller in the centrifugal pump at low specific speed is more complex and has more problems need urgently to resolve.
尤其是低比转速复合叶轮离心泵内部的流动更加复杂，亟待解决的问题也更多。
Mix the pump and adopt the whirling impeller of high speed, the material and liquid that will need to mix carry on abundant and effective mixing.
水粉混合泵采用高速旋转的叶轮，将所需混合的料和液进行充分有效的搅拌。
At last the article summarize FEA simulation results in some points and explain methods for determining best spin testing speed of impeller.
总结了叶轮最佳超速转速的确定方法，以确定经有限元分析的实际叶轮的最佳超速转速。
It sets up a given basis of successful manufacturing of low pressure casting dies of impeller of high-speed fan and other casts like it.
为高速风扇叶轮及其它类似铸件的低压铸造模具的成功制造奠定了一定的基础。
The rotating impeller feeder is above the cylindrical rotating impeller with a specific volume of the discharge of materials to a certain speed.
旋转叶轮给料机是采用圆筒形的上面装有特定体积的旋转叶轮，以一定的转速排出物料。
The conclusions show that Reynolds stress model can be used to describe the tracks of particles in the extra-high speed centrifugal impeller accurately.
模拟结果与已有实验结果吻合，说明采用雷诺应力湍流模型能准确描述超高速离心叶轮中固体颗粒的运动轨迹。
Flexible impeller pump viscous fluid conveying the key lies in direct proportion to flow rate and pump speed.
挠性叶轮泵输送粘性流体的关键之处在于流速和水泵转速成正比。
The results show that the three layers of A200 impeller have more quick thermal speed and better thermal uniformity than A310 impeller.
计算结果表明，3层a310桨比A200桨使槽内流体的升温速度更快，温度分布更加合理。
Combining with development of high speed blower impeller with large titanium material cast welding structure, the manufacturing technical feature of the impeller is set forth.
结合大型钛材铸焊结构高速鼓风机叶轮的研制，阐述了其叶轮的制造工艺特点。
Final design scheme is confirmed after economic and technical analyse. Then, axial fan 's stage type, impeller diameter, hub ratio , specific speed and the number of blades are decided.
在进行经济技术性分析后，最终确定风机的设计方案，进而确定通风机适当的级型式、叶轮尺寸、轮毂比、转速和叶片数等基本参数。
Based on a multifunctional CFD software, the three-dimensional velocity field within the impeller of NASA low-speed centrifugal compressor is computed in detail in this paper.
本文采用一多功能流体动力学计算软件，详细计算分析了NASA低速离心压气机叶轮内部的三维速度场。
Thee working principle of polyurethane foaming machine has three kinds, such as high speed impeller type, high pressure air type, low pressure type and so on.
聚氨酯发泡机工作原理有高速叶轮型、高压空气型、鼓风中低压型等三类。
The research on design method and test for low specific speed impeller are recounted specifically. It is of very importance to further develop and use in low-flow chemical centrifugal pumps.
着重叙述了低比转数叶轮的设计方法、试验研究，对进一步开发、应用小流量化工用离心泵具有重要指导意义。
The technological flowsheet of slurry agitation is introduced. The problems such as structure, rotation speed and overload protection of restarting of agitation impeller are discussed.
介绍矿浆搅拌的工艺过程，论述了搅拌叶轮的结构、转速及再起动的过载与保护等问题。
Motor's speed is low, the balance of impeller is good, the axial force is balanced by water power, so the pump features light tremor, low noise and smooth operation.
采用低转速电机、良好的叶轮平衡及水力平衡轴向力使机组具有噪音低、震动小、运行平稳的特点。
The finite element method for analyzing prestress distribution of integrated compressor impeller after spin test is discussed. The best maximum spin speed and the effect of prestress are determined.
本文论述了对整体式压气机叶轮经超速试验后的应力分布进行计算的弹塑性有限元法，及确定叶轮最佳超速转速、预应力处理的效果的方法。
Axis impeller machining using the special one, to ensure the balance of the impeller at high speed operation.
轴与叶轮采用特殊一体式加工，保证叶轮在高速下的平衡运转。
Results of this thesis provide guiding significance to waterpower design of impeller of the low specific speed centrifugal pump.
对低比转速离心泵叶轮的水力设计具有一定的指导意义。
The characteristics of low specific speed centrifugal pump are introduced, and the grid generation method for impeller passageway and the governing equations of calculation are also expatiated.
简要介绍低比速离心泵特点，阐述计算的控制方程和叶轮通道网格划分方法。
The characteristics of low specific speed centrifugal pump are introduced, and the grid generation method for impeller passageway and the governing equations of calculation are also expatiated.
简要介绍低比速离心泵特点，阐述计算的控制方程和叶轮通道网格划分方法。
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