| 局部附面层抽吸对高负荷扩压叶栅流动特性影响 |
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| 引用本文： | 陈绍文,郭爽,宋宇飞,陈浮.局部附面层抽吸对高负荷扩压叶栅流动特性影响[J].工程热物理学报,2010(3). |
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| 作者姓名： | 陈绍文 郭爽 宋宇飞 陈浮 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院; |
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| 基金项目： | 国家自然科学基金项目资助(No.50976026) |
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| 摘 要： | 在低速条件下实验研究了局部附面层吸除对高负荷扩压叶栅内流动特性的影响。实验对叶栅壁面进行了墨迹流动显示,并采用五孔气动探针测量了叶栅出口截面参数,得到了该截面的二次流速度矢量分布。结果表明,吸力面两端附面层吸除能有效减小角区三维分离、抑制通道涡发展,而在吸力面中部抽吸不能有效抑制角区三维分离流动;在角区分离线起始位置后采用吸力面两端吸气方式时,吸气量越大流动改善的效果越好,其余方案时吸气量变化对流动影响较小。
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| 关 键 词： | 高负荷叶栅 局部附面层吸除 吸气位置 吸气量 |
EFFECTS OF LOCAL BOUNDARY LAYER SUCTION ON THE FLOW CHARACTERISTIC OF HIGHLY-LOADED COMPRESSOR CASCADE |
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| CHEN Shao-Wen GUO Shuang SONG Yu-Fei CHEN Fu.EFFECTS OF LOCAL BOUNDARY LAYER SUCTION ON THE FLOW CHARACTERISTIC OF HIGHLY-LOADED COMPRESSOR CASCADE[J].Journal of Engineering Thermophysics,2010(3). |
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| Authors: | CHEN Shao-Wen GUO Shuang SONG Yu-Fei CHEN Fu |
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| Institution: | Energy Science and Engineering School;Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | The effects of local boundary layer suction on the flow characteristic of highly-loaded compressor cascade in a low-speed situation were investigated experimentally.The ink-trace flow visualizations on the cascade surface were performed to show the boundary layer development.The distributions of the exit secondary flow vector and the exit aerodynamic parameters were measured by five-hole probe in detail.The results show that the end suction can restrain the corner separated flow, weaken the intensity and sc... |
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| Keywords: | highly-loaded cascade local boundary layer suction suction location suction flow rate |
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