摘要
涵道共轴双螺旋桨以其结构紧凑、气动效率高、气动噪声低、安全可靠等性能和结构优点,已经被作为一种推力或升力装置广泛地应用到飞行器设计当中。涵道共轴双螺旋桨作为涵道共轴多旋翼飞行器的主升力系统,为了进一步提升其功率载荷和抗风性,文中采用数值模拟方法对其在悬停状态、轴流状态和斜流状态下的气动特性进行了计算分析。提出了开口壁式涵道螺旋桨的主升力系统构型,并对其气动性能进行了计算,得出了开口壁式涵道螺旋桨相比涵道共轴双螺旋桨所具有的优势。
As the main lifting system of ducted coaxial multi rotor aircraft, the ducted coaxial propeller has the advantages of compact structure, high aerodynamic efficiency, low aerodynamic noise, safety and reliability, etc. To further improve its power load and wind resistance, the numerical simulation method is used to calculate and analyze aerodynamic characteristics of coaxial ducted propeller in hover, axial and oblique flow states. The main lifting system configuration of air leakage ducted propeller is proposed, and its aerodynamic characteristics are discussed. Compared with the ducted coaxial propeller, the superiority of the air leakage ducted propeller is given.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2017年第2期173-182,共10页
Journal of Nanjing University of Aeronautics & Astronautics
基金
中央高校基本科研业务费专项资金资助项目
江苏高校优势学科建设工程资助项目
关键词
涵道螺旋桨
共轴螺旋桨
涵道增升
涵道优化
CFD
ducted propeller
coaxial propeller
lift enhancement
ducted optimization
CFD
