垂直起降飞机新型气动布局设计分析 -- 西北工业大学学报,2017,35(2):189-196
论文:2017,Vol:35,Issue(2):189-196
引用本文:
王红波, 祝小平, 周洲, 张阳. 垂直起降飞机新型气动布局设计分析[J]. 西北工业大学学报
Wang Hongbo, Zhu Xiaoping, Zhou Zhou, Zhang Yang. New Configuration Design and Analysis for a Vertical Take-off/Hovering Solar Powered Aircraft[J]. Northwestern polytechnical university

垂直起降飞机新型气动布局设计分析
王红波1,2, 祝小平2, 周洲1,2, 张阳1,2
1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 西北工业大学 无人机特种技术重点实验室, 陕西 西安 710065
摘要:
针对常规垂直起降飞机起飞阶段存在的不足,基于螺旋桨滑流诱导增升的设计思路,提出了翼上螺旋桨布局和耦合动力的双层翼布局以提高全机在巡航、悬停、垂直起飞状态下的气动性能。采用CFD数值模拟方法研究分析了在二维流动情况下不同布局参数对2种新型布局气动力的影响规律。计算结果表明:通过合理利用螺旋桨滑流,2种布局的升力系数相比于常规拉力螺旋桨布局均有明显的提升,最大升力系数增量可达14.8%,而阻力系数则急剧减小并出现了负阻力值。在零来流速度条件下,耦合动力的双层翼布局依靠螺旋桨滑流的加速效应能够对翼面诱导出升力,从而可最终减小全机在悬停、垂直起飞阶段的功率需求,这一结果证明了利用滑流诱导增升的思路是可行的。
关键词:    垂直起降    滑流增升    翼上螺旋桨布局    耦合动力双层翼布局    负阻力    诱导升力   
New Configuration Design and Analysis for a Vertical Take-off/Hovering Solar Powered Aircraft
Wang Hongbo1,2, Zhu Xiaoping2, Zhou Zhou1,2, Zhang Yang1,2
1. College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. Science and Technology on UAV Laboratory, Northewestern Ploytechnical University, Xi'an 710065, China
Abstract:
According to the assumption making use of the propeller slipstream to increase the lift of the aircraft, two new configurations, i.e., the over-the-airfoil propeller aerodynamic configuration and the new double airfoil configuration coupled with a propeller, are investigated for the purpose of improving the performances of the vertical take-off aircraft during the phases of cruise, hovering and vertical take-off. The Computational Fluid Dynamics (CFD) technology is utilized to investigate the change regulations of these two new configurations affected by the configuration parameters in a two dimensional flow The simulated results indicate that the lift coefficients of these two configurations can be apparently augmented by using the propeller slipstream correctly and the maximum of the lift coefficient increment can be achieved by 14.8%. However, the drag coefficients are reduced significantly, even to be a minus value. With a zero free stream velocity, the axial acceleration of the propeller slipstream still has the ability of inducing some lift on the airfoil for the propeller-coupled double airfoil configuration, as a result, the necessary engine power at the phases of cruise and vertical take-off can be decreased, respectively. Meanwhile, the generation of the induced lift can proof that the assumption described above is practicable.
Key words:    vertical take-off and landing    the increased lift induced by slipstream    over-the-airfoil propeller configuration    propeller-coupled double airfoil configuration    minus drag    induced lift    aerodynamic configurations   
收稿日期: 2016-10-10     修回日期:
DOI:
通讯作者: 周洲(1966-),西北工业大学教授、博士生导师,主要从事无人机设计研究。     Email:
作者简介: 王红波(1986-),西北工业大学博士研究生,主要从事垂直起降无人机总体气动设计研究。
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