基于Bezier曲线确定离心泵叶片流线及包角的方法  

Method of Defining Centrifugal Pump Blade Streamline and Wrap Angle Based on Bezier Curve

作　　者：杨军虎[1] 孙庆冲[1] 张建华[1] 王晓晖[1] 张雪宁[1] 

机构地区：[1]兰州理工大学能源与动力工程学院

出　　处：《化工机械》2011年第5期568-571,共4页Chemical Engineering & Machinery

基　　金：国家科技支撑计划(2008BAF34B10)

摘　　要：提出了根据叶轮叶片进、出口角确定叶片包角和流线形状的方法,保证了叶轮叶片展开流线单调光滑,使叶片展开流线的设计和修改简单方便。在确定叶轮叶片展开流线时采用了四次Bezier曲线,详细论述了离心泵叶片展开流线的控制方法和包角在3种不同情况下的取值范围的计算公式。Basing on impeller blade＇ s inlet and outlet angles, the method to define wrap angle and streamline shape was proposed to make its expanding streamline smooth and simple and easy to design; the quartic Bezier curve was employed in definition and the curves control and the calculation formula for wrap angle in three conditions were expounded.

关 键 词：离心泵 叶片展开流线 四次Bezier曲线 水力设计 

分 类 号：TQ051.21[化学工程]