摘要
根据轴流压气机特点和热线风速仪特性,对测试技术作了一些新尝试。本文总结这些方法,并提供若干典型结果。大量试验表明这些方法有效。
The measurement method of rotating stall is presented. The oifference
between two signals and its frequency are determinea correcry on the basis of the spectrum analysis. Then, the number of rotating stall regime, its spread velocity and is for tained. The methods of the two-dimensional unsteady flow measurement are described. The.ocits distribution of the unsteady flow, for example a rotating stall cell, is obtained. A rotating gie a re method is applied to measuring the two-dimensional boundary layer. The results meater ehind a single rotor and a stator are shown in the paper. The contamination from dirt, the influeru of air flow temperature and the boundary layer flow field disturbance caused by probe hole had been consid-ered.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1989年第2期141-144,共4页
Journal of Aerospace Power
