中国舰船研究2025，Vol.20Issue(z1)：77-87,11.DOI:10.19693/j.issn.1673-3185.04736
翼根加宽两段机翼的地效飞行器气动特性
The aerodynamic characteristics of wing root widened of two sections wing for ground effect aircraft
摘要
Abstract
[Objective]In order to improve the carrying efficiency of the ground effect aircraft,a new type of two-segment wing layout ground effect aircraft is proposed based on the wing root widening and forward-swept design.[Method]First,by comparing wings with root widening and forward-swept wings,the perfor-mance differences of different layouts in high-altitude cruise and low-altitude flight are systematically ana-lyzed.Then,the variation patterns of lift,drag,and lift-to-drag ratio are combined with local pressure distribu-tion to achieve a unified analysis of performance and mechanism.Finally,the aerodynamic characteristics of both wing root widening and straight wing aircraft are calculated in detail by FLUENT.[Results]The re-sults show that the lift-drag ratio of the forward-swept straight wing aircraft is relatively larger during the high-altitude cruise state.The lift-drag ratio of the wing root widening aircraft is greatly improved compared with straight wing aircraft during ground effect flight,and the lift-drag ratio is up to 26.6.The ground effect can sig-nificantly increase the lift coefficient and lift-drag ratio while reducing the drag coefficient of ground effect aircraft,and the relative increase of the lift coefficient of the wing root widening aircraft(up to 19.5%)and the relative decrease of the drag coefficient(maximum 29.1%),and relative increase of lift-drag ratio(up to 66.1%)are all higher than that of straight wing aircraft,indicating that the wing root widening enhances the ground effect.The area and strength of the high-pressure region under the wing gradually increases when the flight altitude decreases.[Conclusion]The research results can provide a technical reference for the design of ground-effect aircraft.关键词
地效飞行器/前掠翼/地面效应/机翼平面形状/气动特性Key words
ground effect aircraft/forward-swept wing/ground effect/wing plane shape/aerodynamic characteristics分类
交通工程引用本文复制引用
郭利欣,刘战合,李隆隆,李恩情,王菁..翼根加宽两段机翼的地效飞行器气动特性[J].中国舰船研究,2025,20(z1):77-87,11.基金项目
河南省科技攻关项目(252102221027,242102220052) （252102221027,242102220052）
河南省高等教育教学改革研究与实践项目(2024SJGLX0405) （2024SJGLX0405）
