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论文:2017,Vol:35,Issue(6):1105-1111 |
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引用本文： |
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王伟, 段卓毅, 耿建中, 王斌, 丁兴志. 考虑螺旋桨滑流影响的双发涡桨飞机气动特性研究[J]. 西北工业大学学报 |
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Wang Wei, Duan Zhuoyi, Geng Jianzhong, Wang Bin, Ding Xinzhi. Aerodynamics Analysis of Twin-Turboprop Aircraft with Propeller Slipstream Effects Considered[J]. Northwestern polytechnical university |
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| 考虑螺旋桨滑流影响的双发涡桨飞机气动特性研究 |
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| 王伟, 段卓毅, 耿建中, 王斌, 丁兴志 |
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| 中航工业第一飞机设计研究院, 陕西 西安 710089 |
| 摘要: |
| 螺旋桨滑流与飞机其他部件之间存在着复杂的气动干扰，将对双发涡桨飞机的气动特性产生较为显著的影响。以双发涡桨飞机为研究对象，采用多重参考系滑移网格技术进行流场数值模拟，研究了不同拉力系数下螺旋桨滑流以及滑流区内尾翼法向位置对全机气动特性的影响。研究结果表明：螺旋桨滑流效应将增加全机升力和阻力，降低全机升阻比，并导致小迎角区域俯仰力矩不稳定；随着拉力系数的增加，全机最大升力系数可增加40%，阻力系数增加150%，升阻比可降低50%，小迎角俯仰力矩拐点可增加8°，静稳定裕度可降低30%；合理地下移尾翼法向位置，可有效地利用螺旋桨滑流的影响，改善其俯仰力矩特性。研究结果对双发涡桨飞机的总体气动设计具有一定的工程指导价值。 |
| 关键词:
滑流
涡桨飞机
气动特性
静稳定性
升阻比
非线性
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| Aerodynamics Analysis of Twin-Turboprop Aircraft with Propeller Slipstream Effects Considered |
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| Wang Wei, Duan Zhuoyi, Geng Jianzhong, Wang Bin, Ding Xinzhi |
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| AVIC The First Aircraft Institute, Xi'an 710089, China |
| Abstract: |
| Aerodynamic interaction of propeller slipstream with aircraft parts will lead to significant influence on the complete twin-turboprop aircraft. Taking the twin-turboprop aircraft for example, the effects on the complete aircraft due to propeller slipstream and the normalized translation of horizontal wing under different thrust coefficient are studied by numerical simulation based on multiple reference frames (MRF) techniques. The research results and their analysis show preliminarily that:due to the effects caused by slipstream of propellers, the lift and drag will increase correspondingly, while the lift-drag ratio will decrease and the pitching moment will become unstable at the small AOA; with the increasing of thrust coefficient, the lift coefficient will increase by 40%, the Cd will increase by 150%, the lift-drag ratio will decrease by 50%, the inflection point at small angle of attack will increase by 8 degrees and the pitching static margin will decrease by 30%;rationally moving the horizontal wing down will make use of the slipstream effects, which will improve the pitching moment characteristics. The investigation is believed to be of some reference value to the design of twin-turboprop aircraft. |
| Key words:
slipstream
propeller aircraft
aerodynamics
static stability
lift drag ratio
nonlinearity
angle of attack
drag coefficient
flow fields
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| 收稿日期: 2017-02-01
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 王伟(1988-),中航工业第一飞机设计研究院工程师、工学博士,主要从事飞机总体气动设计研究。
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| 段卓毅 在本刊中的所有文章 |
| 耿建中 在本刊中的所有文章 |
| 王斌 在本刊中的所有文章 |
| 丁兴志 在本刊中的所有文章 |
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