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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (2): 128643-128643.doi: 10.7527/S1000-6893.2023.28643

• Fluid Mechanics and Flight Mechanics • Previous Articles    

Propulsive/aerodynamic coupled characteristics of distributed-propulsion-wing during forward flight

Kelei WANG(), Zhou ZHOU, Jiahao GUO, Minghao LI   

  1. School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China
  • Received:2023-03-02 Revised:2023-04-03 Accepted:2023-04-17 Online:2023-04-23 Published:2023-04-21
  • Contact: Kelei WANG E-mail:craig-wang@nwpu.edu.cn
  • 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)

Abstract:

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.

Key words: distributed hybrid electric propulsion aircraft, distributed-propulsion-wing, parametric model, propulsive/aerodynamic coupled characteristics, forward flight

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