电动涵道风扇与机翼耦合效应数值模拟研究

Numerical Simulation on Coupling Effectsof Electric Ducted Fans and Wings

为了研究电动涵道风扇与机翼之间的相互作用,采用Ansys Fluent软件创建NACA0012翼型机翼的三维计算模型,通过数值模拟技术研究了不同电动涵道风扇参数对翼型气动性能的影响。结果表明,在三维模拟中,机翼的升力系数最大增加了约20%。值得注意的是,安装在机翼上表面的较小尺寸涵道风扇表现出最显著的升力改善。而电动涵道风扇间距对升力增强的影响因迎角而异。详细的压力系数分布分析表明,涵道风扇在机翼上表面产生了一个实质性的低压区域,有助于提高空气动力学性能。可见电动涵道风扇可以有效地增强翼型的升力,尽管许多影响因素需要进一步优化以确定最佳配置。

In order to examine the interaction between electric ducted fans(EDFs)and a wing,Ansys Fluent software was employed to create a three-dimensional computational model of the NACA0012 airfoil.Numerical simulation techniques were then applied to investigate the influence of various EDF parameters on the airfoil's aerodynamic performance.The results show that,in 3D simulations,the wing's lift coefficient increased by a maximum of approximately 20%.Notably,smaller EDFs mounted on the wing's upper surface exhibited the most significant lift improvement.The analysis further reveals that the impact of EDF spacing on lift enhancement varied depending on the angle of attack.It is concluded that detailed pressure coefficient distribution analysis illustrated that EDFs generated a substantial low-pressure region on the upper surface of the wing,contributing to improved aerodynamic performance.In summary,it is concluded that EDFs can effectively enhance an airfoil's lift,although numerous influencing factors require further optimization to determine the optimal configuration.