| 采用前置凸台结构改善压气机性能 |
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| 引用本文： | 杜朝辉,刘志伟.采用前置凸台结构改善压气机性能[J].航空动力学报,1993,8(3):291-293,311. |
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| 作者姓名： | 杜朝辉 刘志伟 |
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| 作者单位： | 上海交通大学210教研室，西北工业大学 200030 |
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| 摘 要： | 设计了一种新型处理结构 ,前置凸台式处理结构。改变转子尖部深入凸槽的深度及转子叶片前缘与前置凸台之间的距离 ,通过测量发现该结果存在一种最佳尺寸 ,即可扩大压气机的稳定裕度又能提高其效率 ,并可方便地在压气机结构中得以实现 ,具有工程实用价值。
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| 关 键 词： | 压气机 机匣处理 前置凸台结构 效率试验 |
| 收稿时间： | 7/1/1992 12:00:00 AM |
| 修稿时间： | 1992/11/1 0:00:00 |
FRONTALLY TAPERED SQUARED TRENCH CASING TREATMENT FOR IMPROVEMENT OF COMPRESSOR PERFORMANCE |
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| Du Zhaohui and Liu Zhiwei.FRONTALLY TAPERED SQUARED TRENCH CASING TREATMENT FOR IMPROVEMENT OF COMPRESSOR PERFORMANCE[J].Journal of Aerospace Power,1993,8(3):291-293,311. |
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| Authors: | Du Zhaohui and Liu Zhiwei |
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| Institution: | Shanghai Jiaotong University;Northwestern Polytechnical University |
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| Abstract: | A new type of frontally tapered squared trench casing treatment was designed and tested over the rotor tip in a single axial flow compressor.Variations in the rotor tip penetration into the trench and the distance of the trench front from the blade leading edge were investigated.Through the measurements of velocity and pressure,the effects of each geometric parameter upon compressor efficiency and stall margin were evaluated.An optimal configuration has been found which gives not only 0 4% improvement in efficiency but 2% in stall margin in comparison with the smooth wall baseline.The mechanism of enhancement in the efficiency and the reason for existence of optimum configuration for frontally tapered squared trench casing treatment are considered in this paper. |
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