Laser Anemometer Measurements in a Transonic Axial Flow Compressor Rotor
Laser Anemometer Measurements in a Transonic Axial Flow Compressor Rotor
复制标题
跨音速轴流压缩机转子中的激光风速计测量
DOI：
10.1115/1.3230738
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
J. Powell
中科院分区：
文献类型：
--
作者：
A. Strazisar;J. Powell
采用高效的数据采集技术的激光风速计系统被用来测量压缩机转子的上游、内部和下游。荧光染料技术允许端壁边界层内的测量。可调激光束方向最大限度地减少了阴影区域，并实现了叶片排外部的径向速度测量。研究的流动现象包括通道间的流动变化、转子激波系统、叶片尾流中的三维流动以及外端壁边界层的发展。激光风速计的测量相比，流函数方程的数值解，并与传统的仪器测量。
A laser anemometer system employing an efficient data acquisition technique was used to make measurements upstream, within, and downstream of the compressor rotor. A fluorescent dye technique allowed measurements within endwall boundary layers. Adjustable laser beam orientation minimized shadowed regions and enabled radial velocity measurements outside of the blade row. The flow phenomena investigated include flow variations from passage to passage, the rotor shock system, three-dimensional flows in the blade wake, and the development of the outer endwall boundary layer. Laser anemometer measurements are compared to a numerical solution of the streamfunction equations and to measurements made with conventional instrumentation.