| 后缘切角对波瓣混合器性能影响 |
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| 引用本文： | 刘友宏,郭楠,李江宁,才娟,徐兴平.后缘切角对波瓣混合器性能影响[J].航空动力学报,2009,24(9):1917-1922. |
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| 作者姓名： | 刘友宏 郭楠 李江宁 才娟 徐兴平 |
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| 作者单位： | 1. 北京航空航天大学,能源与动力工程学院,北京,100191
2. 沈阳发动机设计研究所,沈阳,110015 |
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| 基金项目： | 航空科技创新基金重点项目 |
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| 摘 要： | 建立了某实用的后缘切角波瓣混合器流场数值计算模型,通过三维数值模拟研究,得到了波瓣后缘切角的角度值对于波瓣混合器流场热混合效率和总压恢复系数的影响规律.结果表明:后缘切角在2.5°至15°之间变化时,热混合效率随切角角度的增大而增大,总压恢复系数随切角角度的增大而减小;后缘切角在15°至60°之间变化时,热混合效率随切角角度的增大而减小,总压恢复系数随切角角度的增大而增大.
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| 关 键 词： | 波瓣混合器 后缘切角 热混合效率 总压恢复系数 |
| 收稿时间： | 2008/9/12 0:00:00 |
| 修稿时间： | 2008/12/11 0:00:00 |
Effect of cut angles at trailing edge on the performance of a lobed mixer |
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| LIU You-hong,GUO Nan,LI Jiang-ning,CAI Juan and XU Xing-ping.Effect of cut angles at trailing edge on the performance of a lobed mixer[J].Journal of Aerospace Power,2009,24(9):1917-1922. |
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| Authors: | LIU You-hong GUO Nan LI Jiang-ning CAI Juan and XU Xing-ping |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;Shenyang Aeroengine Design and Research Institute, Shenyang 110015, China;Shenyang Aeroengine Design and Research Institute, Shenyang 110015, China;Shenyang Aeroengine Design and Research Institute, Shenyang 110015, China |
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| Abstract: | The principle of effect of different cut angles at trailing edge of a practical lobed mixer on the thermal efficiency and the total-pressure recovery coefficient was studied by 3D-CFD(computational fluid dynamics)numerical simulation.The results show that,when the angles cut at trailing edge of the lobed mixer vary from 2.5° to 15°,the thermal efficiency augments and the total-pressure recovery coefficient decline as the angle increases,and when the cut angles vary from 15° to 60°,the thermal efficiency declines and the total-pressure recovery coefficient augments as the angle increases. |
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| Keywords: | lobed mixer cut angle at trailing edge thermal efficiency total-pressure recovery coefficient |
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