| 不同轴向偏转角处理机匣实验与机理分析 |
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| 引用本文： | 旷海洋,楚武利,张皓光.不同轴向偏转角处理机匣实验与机理分析[J].航空动力学报,2015,30(8):1900-1908. |
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| 作者姓名： | 旷海洋 楚武利 张皓光 |
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| 作者单位： | 西北工业大学 动力与能源学院, 西安 710129,西北工业大学 动力与能源学院, 西安 710129;先进航空发动机协同创新中心, 北京 100191,西北工业大学 动力与能源学院, 西安 710129 |
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| 基金项目： | 国家自然科学基金重点项目(51236006) |
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| 摘 要： | 为了探索不同轴向偏转角处理机匣对压气机稳定裕度的影响,以一个亚声压气机为平台通过实验与数值仿真方法探索了8 130r/min设计转速下3种与轴向成不同角度的处理机匣对该压气机稳定性的作用.详细的分析了各流量工况下不同处理机匣叶顶的流动结构、叶顶载荷分布、处理机匣缝(或槽)内的流动、周向平均后叶顶的损失分布和缝内喷射气流的轴向动量.研究发现:随着缝(或槽)与轴向所成夹角的增大,整个流量范围内,处理机匣的扩稳能力先增强后减弱;大流量工况下,转子叶顶载荷增加,转子的等熵效率降低.
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| 关 键 词： | 处理机匣 轴向偏转角 轴流压气机 流场 机理 |
| 收稿时间： | 2014/1/20 0:00:00 |
Experimental and mechanism analysis of casing treatment with different axial angles |
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| KUANG Hai-yang,CHU Wu-li and ZHANG Hao-guang.Experimental and mechanism analysis of casing treatment with different axial angles[J].Journal of Aerospace Power,2015,30(8):1900-1908. |
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| Authors: | KUANG Hai-yang CHU Wu-li and ZHANG Hao-guang |
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| Institution: | School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China,School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China;Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China and School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China |
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| Abstract: | Experimental and numerical simulations were performed on a subsonic compressor to investigate the stabilizing mechanisms of casing treatment with different axial angles at rotation speed of 8130r/min.Flow structures and static pressure distribution of rotor tip,flow structure in the slots(or grooves),loss distribution in rotor tip,axial momentum of the injected flow at different mass flows were studied.Results confirmed that the capability of the casing treatment of extending the compressor stall margin first increased and then decreased within the whole mass flow range,the loading of rotor tip increased and the isentropic efficiency decreased under large mass flow with the increasing axial angle of the casing treatment. |
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| Keywords: | casing treatment axial angle axial flow compressor flow field mechanism |
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