分布式动力翼前飞状态动力/气动耦合特性
收稿日期: 2023-03-02
修回日期: 2023-04-03
录用日期: 2023-04-17
网络出版日期: 2023-04-21
基金资助
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)
Propulsive/aerodynamic coupled characteristics of distributed-propulsion-wing during forward flight
Received date: 2023-03-02
Revised date: 2023-04-03
Accepted date: 2023-04-17
Online published: 2023-04-21
Supported by
Equipment Pre-Research Project(50911040803);National Defence Fund(2021-JCJQ-JJ-0805);Natural Science Foundation of Shaanxi Province(2022JQ-060);Strengthening Basic Disciplines Program(2022-173ZD-195)
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。
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
王科雷 , 周洲 , 郭佳豪 , 李明浩 . 分布式动力翼前飞状态动力/气动耦合特性[J]. 航空学报, 2024 , 45(2) : 128643 -128643 . DOI: 10.7527/S1000-6893.2023.28643
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 forward 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.
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