M. J. Hartmann Memorial Session Paper: NASA/GE Fan and Compressor Research Accomplishments
M. J. Hartmann Memorial Session Paper: NASA/GE Fan and Compressor Research Accomplishments
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M. J. Hartmann 纪念会议论文：NASA/GE 风扇和压缩机研究成就
DOI：
10.1115/1.2929445
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发表时间：
1994
影响因子：
1.7
通讯作者：
L. H. Smith
中科院分区：
文献类型：
--
作者：
L. H. Smith
本文介绍了在NASA赞助下GE飞机发动机公司开展的风扇和压缩机研究项目。四个1400-fps的尖端速度旋翼设计与不同的翼型形状被发现有类似的失速线，但不同的效率趋势。定子放置在其中一个后面，对其性能有一定影响。在1500 fps级之前调整可变弧度进口导叶，可以在不影响失速线的情况下影响泵送能力。对于安静引擎程序（QEP），测试了两个1160帧/秒的风扇和一个1550帧/秒的风扇。高速风扇的发展揭示了翼型形状和部分跨径叶冠堵塞对性能的影响。用于“安静清洁短程实验发动机”（QCSEE）的950 / fps可变螺距风扇展示了反推力能力，以及一种在反推力运行过程中避免较大核心入口压力损失的新方法
Fan and compressor research projects carried out at GE Aircraft Engines under NASA sponsorship are described in this paper. Four 1400-fps-tip-speed rotors designed with different airfoil shapes were found to have comparable stall lines but different efficiency trends. A stator placed behind one of these affected its performance somewhat. Adjustments of variable camber inlet guide vanes placed ahead of a 1500 fps stage were found to affect its pumping capability without much affecting its stall line. For the Quiet Engine Program (QEP), two 1160-fps fans and one 1550-fps fan were tested. Development of the high-speed fan revealed the effects on performance of airfoil shape and part-span shroud blockage. The 950-fps variablepitch fan for the Quiet Clean Short-haul Experimental Engine (QCSEE) demonstrated reverse thrust capabilities and a novel method of avoiding large core inlet pressure losses during reverse thrust operation