后拖式机翼型叶片气动性能的分析研究  

Aerodynamic Performance Analysis and Research of Backward-trailed Airfoil Blade

作　　者：盛才良 徐超 

机构地区：[1]威海克莱特菲尔风机股份有限公司,山东威海264305

出　　处：《风机技术》2012年第6期22-26,共5页Chinese Journal of Turbomachinery

摘　　要：介绍了一种后拖式机翼型叶片,并与普通机翼型叶片作了比较。分析了对后拖式机翼型叶片的叶尖进行适当切割,可以提高全压效率的原因。通过CFD计算比较,确定切割量30%时,全压效率最高。A kind of backward-trailed airfoil blade was introduced and compared with general airfoil blade. The way to improve total pressure efficiency by appropriate inclined cut of airfoil blade tip was studied. It is indicated that the impeller achieves the maximum total pressure efficiency with 30% inclined cut of airfoil blade tip according to the CFD calculation and comparison.

关 键 词：叶片 机翼型 边界条件 损失 切割 扭曲 全压效率 

分 类 号：TH432.1[机械工程—机械制造及自动化]