分布式动力翼-诱导翼面推进-气动耦合模型

doi:10.7527/S1000-6893.2023.29252

Abstract

Abstract:

This paper proposes a propulsion/aerodynamic coupling model for the distributed-propulsion-wing with induced wing configuration based on the research on distributed-propulsion vertical takeoff and landing vehicles， combined theoretical models and engineering assumptions. This model enables real-time and rapid calculation of the aerodynamic performance of distributed-propulsion-wing with induced wing configuration within the entire flight envelope， including vertical takeoff， transition， and cruise phases. Firstly， a fast calculation method for ducted jet velocity is developed by combining the ducted flow field model and the ducted thrust enhancement coefficient. Then， based on the momentum theory， the propulsion-aerodynamic coupling model is derived for both powered and unpowered conditions. Finally， the characteristics of the propulsion-aerodynamic coupling model are analyzed， and CFD simulations and analyses conducted for typical flight conditions. The results show that the proposed propulsion/aerodynamic coupling model for the distributed-propulsion-wing with induced wing configuration exhibits high accuracy and fast computation speed， meeting the real-time calculation requirements for dynamic system analysis and flight control system design.

Key words: distributed propulsion aircraft, propulsion/aerodynamic coupling, distributed-propulsion-wing, induced wing, dynamic modeling

CLC Number:

V211

Qingfeng ZHAO, Zhou ZHOU, Minghao LI, De XU. Propulsion/aerodynamic coupling modeling for distributed-propulsion-wing with induced wing configuration[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(10): 129252-129252.

Figures/Tables 13

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自由来流速度/（m·s^-1）	迎角/（°）	转速/（r·s^-1）	诱导翼面偏转角/（°）	涵道推力/N
10	35	167	45，35	45.17，43.67
20	25	167	35，10	33，32
30	15	167	10，0	12，11.33

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Propulsion/aerodynamic coupling modeling for distributed-propulsion-wing with induced wing configuration

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