The invention belongs to the technical field of rotor blades, and discloses a low-power-consumption anti-icing rotor blade based on a wavy front edge and an anti-icing coating, the anti-icing rotor blade adopts an ice suppression airfoil profile design on the overall or partial extension of a rotor, the ice suppression airfoil profile is specifically an airfoil profile with the wavy front edge, and the surface of the anti-icing rotor blade is covered with the anti-icing coating. Zero-power-consumption passive anti-icing of a geometric shape and an anti-icing coating is used as a main means, the whole or partial extension of the rotor wing adopts an ice suppression airfoil profile design, and a unique vortex flow structure caused by a wavy front edge is utilized, so that the impact of liquid drops on the surface of the wing is reduced while the aerodynamic performance of the airfoil profile is enhanced or maintained, and the aerodynamic performance of the airfoil profile is improved. Therefore, the purposes of inhibiting ice formation and reducing ice accumulation are achieved, and the formation of ice accumulation can be further reduced by utilizing the anti-icing coating on the key part of the surface of the rotor wing; in addition, the wave-shaped front edge can reduce flow loss caused by dynamic stall, and therefore the flight speed of the helicopter can be increased.
本发明属于旋翼桨叶技术领域,公开了一种基于波浪形前缘和防冰涂层的低功耗防冰旋翼桨叶,防冰旋翼桨叶在旋翼整体或者部分展长采用抑冰翼型设计,抑冰翼型具体为带有波浪形前缘的翼型,防冰旋翼桨叶的表面覆盖有防冰涂层。本发明利用“几何外形+防冰涂层”的零功耗被动防冰作为主要手段,在旋翼整体或者部分展长采用抑冰翼型设计,利用波浪形前缘引发的独特对涡流动结构,在增强或者维持翼型气动性能的同时,减少液滴在机翼表面的撞击,从而实现抑制结冰形成、减少积冰的目的,在旋翼表面的关键部位利用防冰涂层可进一步减少积冰的形成;此外,波浪形前缘还能够减少动态失速造成的流动损失,从而能够提高直升机飞行速度。
Low-power-consumption anti-icing rotor blade based on wavy front edge and anti-icing coating
一种基于波浪形前缘和防冰涂层的低功耗防冰旋翼桨叶
2024-04-16
Patent
Electronic Resource
Chinese
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