fan impeller meaning in Chinese

风机叶轮
风扇叶轮

Overspeed test for industrial fan impeller
工业通风机叶轮超速试验
Numeric simulation of flow field inside a composite fan impeller
复合材料风机叶轮内流场数值模拟
Numeric simulation of a composites fan impeller ' s dynamic and static properties
复合材料风机叶轮动静态特性有限元分析
In the thesis , the design method of the diagonal flow fan impeller has detailedly researched different from the previous means borrowing and extending design methods for axial flow or centrifugal type , a complete design method has presented on the basis of quasi - three dimensional design idea . the course is mainly composed of such steps as meridional surface design , inverse problem computation in meridional surface , blade shaping on stream surface , and verifying through three dimensional computation , until the design requirement is met at last
不同于以往的轴流式或离心式延长设计方法或经验方法，本文按照准三元设计的思路给出了一套完整的设计方法，即子午面设计?子午面反问题计算?斜流流面上叶片造型?三维计算验证优化，直至符合设计目标。