【摘要】 概括性地介绍了低比转速离心泵叶轮水力设计领域近年中取得的进展和新理论,讨论分析了不同目标的叶轮几何参数计算方法,如建立在对大量优秀水力模型统计基础之上的速度系数法、以计算机编程综合计算叶轮几何参数的解析法;介绍了特殊的叶片绘形方法,如单圆弧曲线,等变角、非等变角螺旋线等,并对这类叶轮水力设计的研究方向提供了有益的建议。更多还原

【Abstract】 The latest achievements and new theories of low specific speedimpellers hydraulic design is introduced synoptically. Different target impellersgeometric parameters calculation is analysed, such as the speed coefficient methodbased on the stat of a great deal of excellent hydraulic model, the resolutionmethod using computer to calculate impellers?geometric parameters. And especialvane drawing methods, such as single circular curve, same changed angle and differentchanged angel. Then benefit suggestions for research orientation of this kindimpellers?hydraulic design is supplied.更多还原