跨声速单级轴流压气机试验台设计

发布时间：2018-04-19 07:56

本文选题：PIV + 跨声速　；参考：《机械设计与制造》2014年11期

【摘要】：为研究跨声速轴流压气机叶片积垢形成机理,针对目前轴流压气机试验台为固定叶片,或仅为低转速转子试验台的现状,结合粒子图像测速(Particle Image Velocimetry,PIV)技术,根据跨声速转子NASA Rotor37的性能参数,设计了一种精确捕捉跨声速轴流压气机转子叶片通道内流场分布的试验台。该试验台由变频调速电机提供动力,进、出口段设置有压力与温度传感器,出口段还设置有流孔板和节流阀。检测数据通过工业控制计算机自动采集和处理,能实现轴流压气机转速、质量流量、进出口温度与压力的测量,通过结合PIV系统能对压气机转子叶片通道流场分布进行锁相测量。该试验台通用性强,也可用于跨声速轴流压气机内非定常流、旋涡、激波等复杂流动的研究。
[Abstract]:In order to study the formation mechanism of fouling in transonic axial compressor blades, aiming at the present situation that the axial compressor test bench is a fixed blade or only a low speed rotor test bed, the particle Image velocimetry (Particle Image velocimetry) technique is combined with the particle image velocimetry (Particle Image Velocimetric) technique.According to the performance parameters of transonic rotor NASA Rotor37, a test bed is designed to accurately capture the flow field distribution in the rotor blade channel of transonic axial compressor.The test bench is powered by frequency conversion motor. Pressure and temperature sensors are installed at the inlet and outlet, and orifice plate and throttle valve are arranged at the outlet.The measurement data can be automatically collected and processed by industrial control computer, which can realize the measurement of axial compressor speed, mass flow rate, inlet and outlet temperature and pressure.The flow field distribution of compressor rotor blade channel can be measured by PIV system.It can also be used for the study of unsteady flow, vortex, shock wave and other complex flow in transonic axial compressor.
【作者单位】：华北电力大学机械工程系;
【基金】：国家自然科学基金资助项目(51105142) 中央高校基本科研业务费专项项目(10MG18)
【分类号】：TH45;TH703

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