摘要
对一个高负荷跨音速涡轮导向器进行了环形叶栅吹风试验 ,对其根、中截面进行了平面叶栅吹风试验。本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。认为导向器环形叶栅试验结果与平面叶栅试验结果有可比性 ,其叶中截面相当一致 ,根。
An annular nozzle cascade of a highly-loaded transonic turbine-stage has been tested in annular cascade wind tunnel,and its two plane cascades at the hub-and mid-sections—in a plane cascade wind tunnel.Their loss performance,exit flow angle,exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively.It is proven that the experimantal results of the annular nozzle cascade are comprable with those of the plane cascades,particularlly,in quite good agreement at the mid-section.But at the hub-section a obvious difference between the experimental of both results occurs because of the local flow complexity in the annular nozzle cascade.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1989年第4期329-332,共4页
Journal of Aerospace Power
