The invention discloses a gust load retarding device and method based on synthetic dual-jet, the gust load retarding device comprises a synthetic dual-jet exciter arranged in a wing, the synthetic dual-jet exciter is provided with a first jet outlet and a second jet outlet, and the rear edge of the wing is a Coanda curved surface; the first jet flow outlet is formed in the upper surface of the wing and faces the front edge direction of the wing so as to actively induce a separation area; the second jet flow outlet is formed in the lower surface of the wing, and the second jet flow outlet is tangent to the Coanda curved surface so as to form wall-attached streaming. The invention is applied to the field of active flow, can increase the airflow velocity of the lower surface of the wing while reducing the airflow velocity of the upper surface of the wing, changes the velocity difference between the upper and lower wing surfaces of the wing, further reduces the lift load of the aircraft under gust, slows down the gust load, and has the advantages of simple structure, light weight, no need of additional air source, and low cost. And the method has a good engineering application background.
本发明公开了一种基于合成双射流的阵风载荷减缓装置及减缓方法,阵风载荷减缓装置包括设在机翼内部的合成双射流激励器,合成双射流激励器具有第一射流出口与第二射流出口,机翼的后缘为柯恩达曲面;第一射流出口设在机翼的上表面,且第一射流出口朝向机翼的前缘方向,以主动诱导出分离区;第二射流出口设在机翼的下表面,且第二射流出口与柯恩达曲面相切,以形成附壁绕流。本发明应用于主动流动领域,能够在降低机翼上表面的气流流速的同时增加机翼下表面的气流流速,改变机翼上下翼面的速度差,进而降低阵风下飞行器的升力载荷,实现阵风载荷的减缓,且结构简单、质量轻、不需要额外气源,具有较好的工程应用背景。
Gust load retarding device and method based on synthetic dual jet
基于合成双射流的阵风载荷减缓装置及减缓方法
2024-08-16
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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