| 采用壁面吸气改善叶栅性能的数值模拟 |
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| 引用本文： | 张华良,王松涛,王仲奇. 采用壁面吸气改善叶栅性能的数值模拟[J]. 动力工程, 2006, 26(6): 795-798 |
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| 作者姓名： | 张华良 王松涛 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,哈尔滨,150001 |
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| 摘 要： | 针对某大折转角子午扩张型导叶，通过数值模拟，讨论了端壁附面层抽吸对叶栅性能的影响。结果表明：对于大分离叶栅，在靠近吸力面的端壁上进行附面层抽吸可以获得最佳效果。端壁抽吸可以改变流场的分离形态，遏止端壁角区的分离，并延迟和减小吸力面的分离。从而在大部分叶高上使得叶片负荷增加，损失减小，并且沿径向分布趋于均匀。
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| 关 键 词： | 动力机械工程 叶轮机械 导叶 大折转角 抽吸 分离形态 负荷 |
| 文章编号： | 1000-6761（2006）06-795-04 |
| 收稿时间： | 2006-02-25 |
| 修稿时间： | 2006-02-25 |
Numerical Simulation for Applying Boundary Layer Suction on End-wall to Improve the Aerodynamic Performance of Cascade |
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| ZHANG Hua-liang,WANG Song-tao,WANG Zhong-qi. Numerical Simulation for Applying Boundary Layer Suction on End-wall to Improve the Aerodynamic Performance of Cascade[J]. Power Engineering, 2006, 26(6): 795-798 |
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| Authors: | ZHANG Hua-liang WANG Song-tao WANG Zhong-qi |
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| Affiliation: | College of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | By using of numerical simulation, the effect of applying boundary layer suction on end-wall to the aerodynamic performance for a van with a high-turning angle and meridional divergence was discussed. The result showed that for the cascade with larger separation, perfect effects can be obtained by applying boundary layer suction on the end-wall near suction surface. The separation configuration of the flow field will be changed the comer will be restrained and also the separation on the suction surface by end-wall suction. The flow separation at will be delayed or depressed. Therefore the blade loading along the blade height will be enlarged. Furthermore the flow loss will be decreased and the flow field will be distributed uniformly along radial. |
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| Keywords: | power and mechanical engineering turbo-machine vane high-turning angle suction separation configuration loading |
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