The experiment shows that by changing the velocity coefficient , the separation of boundary layer on pump vane can be controlled, and the performance of pump is improved and its hydraulic efficiency.

实验证明通过改变叶片型线参数方程中的速度系数的取值，可以控制边界层的分离，进而改善泵的性能，提高其水力效率。

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Intake channel and forebay of pumping station is an important component part of the pumping station. The hydraulic characteristics of inlet have the effects on pump performance.

泵站引河前池是泵站的一个重要的组成部分，泵站进水口水力特性会影响水泵性能的有效发挥。

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The imbalance weight of impeller of IFZ screw non-clogging pump has great effect on hydraulic performance of pump.

IFZ型无堵塞泵螺旋式叶轮的不平衡量对泵的水力性能有重大影响。

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