| 叶栅相似变换准则的实验研究 |
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| 引用本文： | 朱年国,徐力平,陈矛章.叶栅相似变换准则的实验研究[J].航空动力学报,1991,6(3):193-198,281. |
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| 作者姓名： | 朱年国 徐力平 陈矛章 |
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| 作者单位： | 广州华南理工大学造船系，北京航空航天大学，北京航空航天大学 510641 |
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| 摘 要： | 本文叙述为验证叶栅相似变换准则所进行的低速风洞实验研究 ,对应NACA6 5 (12 )10和DCA叶栅的高速试验 ,分别测量了其低速相似叶栅的叶片表面压力分布。由于实验条件的不同 ,本文从相对差别这一角度验证了文献 1]中所推得的相似变换准则的正确性。实验结果表明 :实际的低速叶栅和高速叶栅具有同无粘设计所得到的同一量级的相似精度 ,因而只需提高设计相似精度便可提高实际模型的相似精度
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| 收稿时间： | 1990/12/1 0:00:00 |
EXPERIMENTAL STUDY ON CASCADE SIMILARITY TRANSFORMATION RULES |
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| Zhu Nianguo,Xu Liping and Chen Maozhang.EXPERIMENTAL STUDY ON CASCADE SIMILARITY TRANSFORMATION RULES[J].Journal of Aerospace Power,1991,6(3):193-198,281. |
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| Authors: | Zhu Nianguo Xu Liping and Chen Maozhang |
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| Affiliation: | Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics |
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| Abstract: | In order to verify the similarity transformation rules in real flow situation,two sets of low speed cascades similar to the high speed NACA65 (12)10 and DCA cascades,are designed according to the similarity rules developed by the authors and tested in a two dimensional low speed cascade tunnel.The distributions of pressure coefficient on blade surfaces are measured.The results show that the measured similarity precision is of the same order of magnitude as the design simitarity precision.Therefore further improvement of the similarity precision of blade profiles can be achieved by the improvement of the design similarity precision. |
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