离心通风机叶片进口边优化设计  

Deopmization of Blade Inlet Profile for Centrifugal Fan

作　　者：王冬屏[1] 

机构地区：[1]大连铁道学院机械工程系

出　　处：《大连铁道学院学报》1997年第3期77-80,94,共5页Journal of Dalian Railway Institute

摘　　要：采用流线曲率法计算了叶轮进口无叶区流场，并根据计算结果和实验验证，设计出一种新的叶片入口型线，使沿叶片进气边冲角均匀．Streamline curvature method has been developed for computing inlet vaneless region of impeller.The experimental results are in conformity with the computing results.On the basis of computing method as above,studies the experimental impeller in detail.According to the distribution of flow angle and blade angle,a new blade inlet profile has been given.The result provides effective reference for designing suitable blade inlet profile.It is of significant for us to decrease fan noise and increase fan efficiency.

关 键 词：离心式 通风机 叶片 设计 流线曲率法 

分 类 号：TH432[机械工程—机械制造及自动化]