| 叶片弯、掠对压气机端壁流动的影响 |
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| 引用本文： | 陈浮,赵桂杰,宋彦萍,卞兆喜,王仲奇.叶片弯、掠对压气机端壁流动的影响[J].工程热物理学报,2004,25(2):211-215. |
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| 作者姓名： | 陈浮 赵桂杰 宋彦萍 卞兆喜 王仲奇 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001;哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001;哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001;哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001;哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目(No.50236020)，国家科技部973项目资助(No.G1999022307)，哈尔滨工业大学校基金项目资助(No.HIT.2001.22) |
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| 摘 要： | 通过壁面静压测量、流场显示及气动探针测量研究了不同掠型叶片组成的平面扩压叶栅特性。结果表明,前掠 叶栅流道中横向压力梯度减弱,型面压力沿叶展呈反“C”型,有利于减弱角区低能流体堆积,但中径处损失有所增加; 弯掠叶片强化了上述趋势,其降低端部损失和延缓角区分离的能力更强,应从优化设计角度对其进行深入研究。
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| 关 键 词： | 扩压叶栅 流场显示 静压 弯掠叶片 |
| 文章编号： | 0253-231X(2004)02-0211-05 |
| 修稿时间： | 2003年11月28 |
INFLUENCES OF SWEPT AND CURVED BLADE ON THE FLOW NEAR COMPRESSOR CASCADE ENDWALL |
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| CHEN Pu ZHAO Gui-Jie SONG Yan-Ping BIAN Zhao-Xi WANG Zhong-Qi.INFLUENCES OF SWEPT AND CURVED BLADE ON THE FLOW NEAR COMPRESSOR CASCADE ENDWALL[J].Journal of Engineering Thermophysics,2004,25(2):211-215. |
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| Authors: | CHEN Pu ZHAO Gui-Jie SONG Yan-Ping BIAN Zhao-Xi WANG Zhong-Qi |
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| Abstract: | The performance of rectangular compressor cascades composed of different swept blades was studied by static pressure measurement, flow visualization and probe measurement. The result of experiment showed the pitch-wise pressure gradient of swept-forward cascade's passage reduced and a negative " C" type distribution of static pressure formed on the suction surface, which was propitious to reducing the accumulation of low energy fluid at corner but increased loss at midspan. The swept-curved cascade strengthened the trend mentioned above, and possessed more strongly capability of reducing endwall loss and delaying flow separation at corner. Optimize study needed for this blade to achieve further improvement of aerodynamic performance. |
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| Keywords: | compressor cascade flow visualization static pressure swept-curved blade |
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