| 大型飞机后体流动控制及减阻机理研究 |
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| 引用本文： | 于彦泽,刘景飞,蒋增龚,陈宝.大型飞机后体流动控制及减阻机理研究[J].空气动力学学报,2011,29(5). |
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| 作者姓名： | 于彦泽 刘景飞 蒋增龚 陈宝 |
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| 作者单位： | 1. 北京航空航天大学,北京100083;中国航空工业空气动力研究院,哈尔滨150001
2. 中国航空工业空气动力研究院,哈尔滨,150001 |
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| 基金项目： | 装备预研基金(批准号:9140A13010608HK5703) |
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| 摘 要： | 通过数值模拟方法研究了大型飞机机身后体的流动特征和机理,并采用涡流发生器对机身后体流动分离进行控制,分析了其控制减阻的机理,讨论了不同参数对减阻效率的影响。计算结果表明:大型飞机机身后体流动分离是导致巡航阻力增加的一个重要因素;在后体底部附近安装涡流发生器,当来流迎角为负时减阻效果较明显,随着迎角的逐渐增大,减阻效果降低;涡流发生器的尺寸、周向距离、安装在机身后体上的前后位置、安装角度等参数对减阻效果具有显著影响。
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| 关 键 词： | 大型飞机后体 数值模拟 流动控制 涡流发生器 |
The investigation of flow control and drag reduction mechanism for transport airplane aft-body |
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| YU Yan-ze,LIU Jing-fei,JIANG Zeng-yan,CHEN bao.The investigation of flow control and drag reduction mechanism for transport airplane aft-body[J].Acta Aerodynamica Sinica,2011,29(5). |
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| Authors: | YU Yan-ze LIU Jing-fei JIANG Zeng-yan CHEN bao |
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| Institution: | YU Yan-ze,LIU Jing-fei,JIANG Zeng-yan,CHEN bao(China Aerodynamics Research Institute of Aeronautics,Herbin 150001,China) |
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| Abstract: | In this paper,numerical simulation has been used to research the flow characteristics and mechanism of transport aircraft aft-body,vortex generators were used to control separated flows of aft-body,and it got an analysis of drag reduction mechanism by controlled,and also discussed the effect of different parameters on drag reduction.Calculation results show that: the drag of transport airplane aft-body is mainly caused by the flow separation of aft-body;vortex generators were fixed on the bottom of aft-body... |
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| Keywords: | transport airplane aft-body numerical simulation flow control vortex generator |
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