分布式动力翼前飞状态动力/气动耦合特性  

Propulsive/aerodynamic coupled characteristics of distributedpropulsion-wing during forward flight

作　　者：王科雷 周洲[1] 郭佳豪 李明浩 WANG Kelei;ZHOU Zhou;GUO Jiahao;LI Minghao(School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《航空学报》2024年第2期132-150,共19页Acta Aeronautica et Astronautica Sinica

基　　金：装备预研项目(50911040803);国防基金(2021-JCJQ-JJ-0805);陕西省自然科学基金(2022JQ-060);基础加强计划(2022-173ZD-195)。

摘　　要：以分布式混合电推进飞行器技术研究为背景,针对分布式动力翼在前飞状态下动力/气动耦合特性开展数值模拟及分析。首先,通过对分布式动力翼各部件进行合理拆解,结合超椭圆方程、四阶Bezier曲线、CST (Class Function/Shape Function Transformation)参数化方法等构建了分布式动力翼复杂对象的参数化模型。然后,依次对动力翼二维剖面翼型、动力翼单元翼段、分布式动力翼整体动力/气动耦合特性进行了数值研究,并与常规翼型-机翼进行了对比分析。最后,梳理了分布式动力翼内外流耦合与其二维-单元-整体特性之间的内在联系,提出了关于分布式动力翼动力/气动耦合设计思路的建议。Based on the distributed hybrid electric propulsion aircraft technology,we conducted numerical simulation and analysis on propulsive/aerodynamic coupled characteristics of the Distributed-Propulsion-Wing(DPW)during for⁃ward flight.Firstly,the parametric model of the DPW was constructed in the component dismantling way by using the super-elliptic equation,the fourth-order Bezier curve,and the Class Function/Shape Function Transformation(CST)arameterization method.Secondly,the numerical analysis on propulsive/aerodynamic coupled characteristics of the DPW sectional airfoil,the unit DPW section,and the whole DPW was carried out in sequence,and comparison with the conventional airfoil-wing performance parameterization.Finally,the internal relationships between the internal and external flow coupling effect and the section-wing performance similar to airfoil-wing were discussed,and suggestions on the propulsion/aerodynamic integrated design of DPW were presented.

关 键 词：分布式混合电推进飞行器 分布式动力翼 参数化模型 动力/气动耦合特性 前飞状态 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]