查询词典 impeller

To verify the accuracy of CFD simulations, experiments were carried out. The results of simulations with user defined function of the effects of impeller type and stirring rate on the velocity field were in good agreement with the output of particle image velocity. The oxygen mass transfer model can be used to predict the process of oxygen mass transfer in a vessel, and the logarithmical expression can successfully describe the relation between the oxygen concentration and the dissolution time.

结果表明，(1)采用Fluent软件并结合用户自定义方程(user defined function， UDF)能够很好地模拟出实际搅拌器内流场分布，模拟结果与采用粒子成像技术(particle image velocity， PIV)的实验测量结果相符；(2)采用氧气传质模型能预测氧气在搅拌器内的动态传质过程，同时氧气浓度与溶解时间的对数关系式能较好描述试验搅拌器内氧气动态传质过程；(3)在相同搅拌速度下，圆盘涡轮式搅拌器产生的湍流动能分布范围要大于桨式搅拌器产生的湍流动能，而且湍流动能分布更均匀，湍流强度更大。

Flow in pipeline and turbomachine are tested by PDPA as examples. Measurement methods are introduced, including nonspherical particle measurement, window effections, discrimination between two phases, circumferential orientation in rotated impeller, and 3D velocity measurement.

结合管流及叶轮机械中的应用实例探索PDPA在盐析两相流测量中的方法，提出测量中需解决的关键问题：非球形颗粒测量、液固两相运动区分、测量窗口、旋转叶轮测量的周向定位、两相三维速度测量等，并给出了解决措施。

Using the new techniques of pendular impeller and wind guide turbo , the decumbent wind power engine can use the wind power energy more efficent.

在横卧式风力发动机上利用摆动式风叶和导风涡轮等新技术，能更高效地利用风力资源。

HZJ series pulp pump :It is aimed at papermaking profession particular technology but the design special subject and employs the pump ,Adopt the composition about the style opening impeller ,There are powerfuler fibre and pellet by means of the capability ,Run smooth and steadyly ,Protection is portably .

HZJ系列纸浆泵：它针对造纸行业的特殊工艺而设计的专业用泵，采用开式叶轮的前后开门结构，有较强的纤维和颗粒通过能力，运行平稳，维护简便。

And the extreme centrifugal force from the enlarged higher impeller stops the solution as it entering the higher impellr. At the same time, the full solution in the chamber stops the air mixed with the solution in the chamber to go down. This way masterly eliminates both big problems of vertical sealless pump, overflow at high pressure and bubbles at big flow.

上部叶轮时，即受加大之背叶的强大阻力而无法上升，但上部叶轮所卷入液体中的空气，却受阻於水室中贮满的液体而无法下降，如此巧妙地排除了立式无轴封泵高压时溢流，或大流量时吸入空气的两大难题。

Impeller--Adopts high quality, slantwise design armor plate, and it forms a resonable flowing-path with the stretchiing front tray.

风轮风轮—采用优质钢板制作而成的叶片，通过倾斜设计，与拉伸成型的前盘一起形成了更合理的流道，从而保证了叶轮的高效率

In this study, CFD modeling mixing of water in a unbaffled vessel agitated by a four-bladed Rushton turbine and the affects of parameters of impeller on flow has been carried out by using the proprietary FLUENT.

AMPS之优点为良好的绘图功能及分割网格模式，运用点线面体四种工具将模型绘出，接著依照分析类型选择切割网格方式，能有效节省分析时间。

Research on the Basic Kinematics-Geometry Theory and Tool Positioning Strategy for 5-axis NC Machining;2. The paper introduces the construction features of undevelopable ruled surface integral impeller and two 5-Axis numerical control mill machining methods of vane shape which are "line contact" and "point contact".

文章介绍了不可展直纹面型整体叶轮的结构特点及五坐标数控铣削加工叶片型面&线接触&和&点接触&两种方式，分析了采用侧铣加工产生误差的原因，对加工中的不同工步及精加工薄叶片的特殊处理进行了分析，并提出了相应的解决方案，对整体叶轮的数控加工有一定的现实意义和实用价值。

In the paper the time marching method is used to solve the control equations and a computational analysis of the flow field in a unshrouded impeller is presented.

中文摘要：本文利用数值计算方法对一带分流叶片的离心压气机工作轮内部三维粘性流场进行了数值模拟。

Analysis one-way aerodynamic and strength fluid-solid interaction of an unshrouded centrifugal impeller blade under different conditions.

采用非结构化网格有限体积法和有限元方法，进行了不同工况半开式离心叶轮叶片单向气动与强度流固耦合分析。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。