叶根倒角对离心叶轮气动性能的影响

工程热物理学报 , 2009, 30(1): 41-43.

1.华北电力大学电站设备状态监测与控制教育部重点实验室,北京,102206

2.华北电力大学电站设备状态监测与控制教育部重点实验室,北京,102206

基金项目: 国家自然科学基金(90718025)

INFLUENCE OF ROOT FILLET ON THE AERODYNAMIC PERFORMANCE OF CENTRIFUGAL IMPELLER

本文分别以一个低压比和一个高压比离心叶轮为对象,采用FINE/TURBO软件包,数值分析了叶片根部加倒角对叶轮流场气动性能的影响.结果表明:叶根倒角的存在会使流量减小,倒角越大,通流量也越小;倒角使压比和效率均有所下降,并对叶根附近流动参数分布带来明显的影响.

[1]	Hirsch Ch;Kang S;Pointel G .A Numerically Supported Investigation of the 3D Flow in Centrifugal Impellers,Part Ⅰ:The Validation Base[ASME 96-GT-151][R].,1996.
[2]	Hirsch Ch;Kang S;Pointel G .A Numerically Supported Investigation of the 3D Flow in Centrifugal Impellers,Part Ⅱ:Secondary Flow Structure[ASME 96-GT-152][R].,1996.
[3]	Kang S;Hirsch Ch .Numerical Simulation and Theo-retical Analysis of the 3D Viscous Flow in Centrifugal Impellers[J].Journal TASK Quarterly Poland,2001,5(04):455-479.
[4]	康顺,刘强,祁明旭.一个高压比离心叶轮的CFD结果确认[J].工程热物理学报,2005(03):400-404.
[5]	Kang S .Numerical Investigation of a High Speed Cen-trifugal Compressor[ASME GT2005-68092][R].,2005.
[6]	Eisenlohr G;Krain H .Investigation of the Flow through a High Pressure Ratio Centrifugal Impeller[ASME 2003-GT-303][R].,2002.

上一张下一张

计量

作者相关

文章评分