贝赛尔曲线设计离心泵叶轮的叶片型线

采用四次贝赛尔曲线设计离心泵叶轮的叶片展开流线，摒弃了传统的三次多项式拟合带来的曲线调整的不方便性，避免了样条函数解矩阵方程组的繁琐，使得设计简单，曲线更加光滑平顺，且便于控制，能满足水泵汽蚀和效率的不同要求。

Design for the Blade Shape of Centrifugal Pump Using Bezier Curve

Bezier curve is used to design for the blade shape of centrifugal pump. A traditional method of third order polynomial calculation for the blade shape is abandoned, and the spline function that must solve huge equations and is very complicated is also avoided. Using Bezier curve can make design simply, and the blade shape can be controlled easily. It can satisfy the different demand for cavitation and efficiency.