Then establish the three-dimension model of the impeller passage with UG soft and put the model into the girding caved up by the ANSYS.
然后，利用UG软件建立叶轮流道的三维模型，并将该模型导入到ANSYS中划分计算网格。
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。
The inlet passage (28) leads to the impeller (34) and directs fluid flow substantially perpendicular with respect to an axis of rotation (38) of the impeller (34).
并且其中，该入口通道(28)通向该叶轮(34)并且引导流体基本上垂直于该叶轮(34)的一条旋转轴线(38)流动。
The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.
低比转速泵的高扬程决定了叶片流道内逆压梯度比较高，这种压力分布使得水流易于在叶片表面脱流分离，这一现象甚至在泵的设计点也难以避免。
The results show that the full passage calculation can simulate the flow in the double channel impeller, especially at the inlet and exit, to assess the pump performance.
结果表明全流道计算可以较好地模拟双流道叶轮的内部流动，尤其是叶轮进出口的流动，并可对泵的外特性做出预估。
However, knowledge of the 3d viscous flow in this kind of impeller flow passage is quite limited.
然而，人们对其流道内三维粘性流动的认识却非常有限。
However, knowledge of the 3d viscous flow in this kind of impeller flow passage is quite limited.
然而，人们对其流道内三维粘性流动的认识却非常有限。
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