| 弯叶片对压气机叶片表面流动稳定性影响研究 |
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| 引用本文： | 董学智,张华良,赵洪雷,谭春青.弯叶片对压气机叶片表面流动稳定性影响研究[J].工程热物理学报,2008,29(12). |
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| 作者姓名： | 董学智 张华良 赵洪雷 谭春青 |
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| 作者单位： | 中国科学院工程热物理研究所,北京,100190 |
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| 摘 要： | 本文研究了压气机叶栅中采用弯叶片对叶片表面流动稳定及转捩的影响.以风洞测得的叶片表面静压实验数据为基础,通过求解Falkner-Skan方程,获得不同来流马赫数下叶片边界层内气动参数.将以上结果作为边界层的平均流动值,结合数值离散化的正交曲线坐标系线性抛物化稳定性方程(PSE),对边界层流动的稳定性进行特征值分析.计算结果表明,在压气机中采用弯叶片,可改善叶栅吸力面两端区边界层的流动,但同时会恶化叶栅吸力面中部边界层流动的稳定性;合理地匹配选择叶片的弯向与弯量,才能有效地提高扩压叶栅的整体流动稳定性.
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| 关 键 词： | 压气机 风洞实验 弯叶片 边界层稳定性 PSE方法 |
STUDY OF BOW BLADES EFFECT OF STABILITY IN COMPRESS CASCADE SURFACE BOUNDARY LAYER FLOW |
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| DONG Xue-Zhi,ZHANG Hua-Liang,ZHAO Hong-Lei,TAN Chun-Qing.STUDY OF BOW BLADES EFFECT OF STABILITY IN COMPRESS CASCADE SURFACE BOUNDARY LAYER FLOW[J].Journal of Engineering Thermophysics,2008,29(12). |
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| Authors: | DONG Xue-Zhi ZHANG Hua-Liang ZHAO Hong-Lei TAN Chun-Qing |
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| Institution: | DONG Xue-Zhi ZHANG Hua-Liang ZHAO Hong-Lei TAN Chun-Qing (Institute of Engineering Thermophisic,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | Effect of compress blade cascade used bow blade on blade surface boundary flow stability and turbulence.Based on experiment data of blade surface pressure distribution in wind tunnel,the mean parameters of the boundary flow can be solved with the Falkner-Skan equation.The mean results are then used to be the initial parameters for the Parabolized Stability Equations(PSE)in orthogonal curvilinear coordinate system,and stability of boundary flow can be analyzed eigenvalue.It is shown that used bow blade in co... |
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| Keywords: | compressor wind tunnel bow blade boundary stability PSE method |
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