The Effect of Blade-Wakes on the Performance of Short Dump-Diffuser Type Combustor Inlets
The Effect of Blade-Wakes on the Performance of Short Dump-Diffuser Type Combustor Inlets
复制标题
叶片尾流对短倾卸扩散器型燃烧室入口性能的影响
DOI：
10.1115/1.3240657
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
M. Rohiffs
中科院分区：
文献类型：
--
作者：
A. Klein;P. Pucher;M. Rohiffs
本文介绍了压气机叶栅产生的气流畸变对短环形扩压器燃烧室进气道性能影响的实验结果。叶栅与扩压器进口平面之间的距离是变化的。当该距离变小时，损耗显著增加。在大多数试验中，损失在大约两个叶片弦长的距离处最小。当叶栅被移除时，损失高于该最小值。有证据表明，径向堵塞因子，而不是总堵塞因子决定的损失的大小。
Experimental results are presented of the effects of flow distortions, generated by a compressor cascade, on the performance of a short annular dump-diffuser type combustor inlet. The distance between the cascade and the diffuser entrance plane was varied. The losses increase substantially when this distance becomes small. In most of the tests the losses turned out to be minimum at a distance of about two blade-chord lengths. When the cascade was removed, the losses were higher than this minimum value. Evidence is presented that the radial blockage factor rather than the total blockage factor determines the magnitude of the losses.