| 涡轮机匣流动阻力特性实验 |
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| 引用本文： | 张丽,朱惠人,张书华.涡轮机匣流动阻力特性实验[J].航空动力学报,2014,29(1):9-13. |
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| 作者姓名： | 张丽 朱惠人 张书华 |
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| 作者单位： | 西北工业大学 动力与能源学院, 西安 710072;西北工业大学 动力与能源学院, 西安 710072;中国航空工业集团公司 沈阳发动机设计研究所, 沈阳 110015 |
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| 摘 要： | 通过实验测量了不同雷诺数(80 000~260 000)情况下整个涡轮机匣腔内的压力分布,总结了涡轮机匣腔内压力分布和流动阻力特性.实验结果表明:①在腔二到腔三的过渡区域,压力下降非常明显,压力损失较大;②随着雷诺数的增大,静压系数有增大的趋势,增大的幅度在19%以内;③随着雷诺数的增大,总压损失系数变化较为平稳,变化范围在10%以内.
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| 关 键 词： | 涡轮机匣 流动 阻力 静压系数 总压损失系数 |
| 收稿时间： | 2013/5/31 0:00:00 |
Experiments of flow resistance characteristic in turbine casing |
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| ZHANG Li,ZHU Hui-ren and ZHANG Shu-hua.Experiments of flow resistance characteristic in turbine casing[J].Journal of Aerospace Power,2014,29(1):9-13. |
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| Authors: | ZHANG Li ZHU Hui-ren and ZHANG Shu-hua |
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| Institution: | School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;Shenyang Engine Design and Research Institute, Aviation Industry Corperation of China, Shenyang 110015, China |
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| Abstract: | The pressure distribution and flow resistance characteristic in cavity of turbine casing was summarized by experiment of measuring the pressure distribution of whole cavity of turbine casing with different Reynolds numbers (80000 to 260000). The experiment results show that: (1) the pressure drop is obvious, and there is a large pressure loss in the transition zone between the second and third tanks; (2) the static pressure coefficient increases with the increasing Reynolds number, and the maximum increament is about 19%; (3) the total pressure loss coefficient varies stably with the Reynolds number increasing, and the difference is below 10%. |
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| Keywords: | turbine casing flow resistance static pressure coefficient total pressure loss coefficient |
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