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反弯曲扩压时栅降低二次流损失的实验研究
引用本文:钟兢军,王苇,苏杰先,王仲奇.反弯曲扩压时栅降低二次流损失的实验研究[J].工程热物理学报,1997(1).
作者姓名:钟兢军  王苇  苏杰先  王仲奇
作者单位:哈尔滨工业大学能源学院!哈尔滨,150001,哈尔滨工业大学能源学院!哈尔滨,150001,哈尔滨工业大学能源学院!哈尔滨,150001,哈尔滨工业大学能源学院!哈尔滨,150001
摘    要:1前言近年来,压气机叶栅中应用弯曲叶片的研究已受到许多学者的重视l‘,‘]并得到了一些有益的结果。我们已完成的正倾斜、正弯曲和S型平面扩压叶棚的实验结果也表明,采用正弯曲方式的叶片可明显改善叶栅根区气流流动状况,延缓壁角失速,降低端区二次流损失【‘,‘1。为了对比在相同的叶片倾斜角下不同叶片堆迭线型式对叶栅流场的影响,进行了应用反弯曲叶片的压气机平面叶栅的实验研究,以期找出比较合理的叶片弯曲型式,从而降低叶栅的二次流损失。本文在0”、土5”和土10“冲角下,对叶片堆送线如图1所示的反弯曲叶片组成的扩压叶…

关 键 词:反弯曲叶片  扩压叶栅  出口流场  静压分布  二次流损失

THE EXPERIMENTAL INVESTIGATION OF USING NEGATIVE CURVED BLADE FOR REDUCING SECONDARY LOSS IN COMPRESSOR CASCADE
ZHONG Jingjun, WANG Wei, SU Jiexian, WANG Zhongqi.THE EXPERIMENTAL INVESTIGATION OF USING NEGATIVE CURVED BLADE FOR REDUCING SECONDARY LOSS IN COMPRESSOR CASCADE[J].Journal of Engineering Thermophysics,1997(1).
Authors:ZHONG Jingjun  WANG Wei  SU Jiexian  WANG Zhongqi
Abstract:Detailed experimental investigation has been performed with negative curved blade compressor cascade. The cascade exit flow field, the static pressure on blade surfaces and endwalls were surveyed at five incidences, and the flow visualization was carried out at zero incidence.The experimental results show that using negative curved blade the cascade aerodynamic characteristics can be improved, the secondary loss reduced, the field of static pressure reorganized and good flow field structure established.
Keywords:negative curved blade  compressor cascade  exit flow field  static pressure  secondary loss
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