Magazine Article

Active Flow Control System for Simple-Hinged Flaps

TBMG-46500

09/01/2022

Abstract
Content

Conventional high-lift systems allow transport aircraft to safely operate at low speeds for landing and takeoff. These high-lift devices, such as Fowler flaps, are complex, heavy, and have high part counts. Fowler flap mechanisms also protrude externally under the wings, requiring external fairings, which increase cruise drag. Simple-hinged flaps are less complex, and an ideal choice for low-drag cruise efficiency. However, simple-hinged flaps require high flap deflections to achieve lift comparable to Fowler flaps. These flap deflections cause severe adverse pressure gradients, which generate flow separation that is difficult to control. In response to these challenges, NASA developed the High Efficiency Low Power (HELP) active flow control (AFC) system.

Meta TagsDetails
Citation
"Active Flow Control System for Simple-Hinged Flaps," Mobility Engineering, September 1, 2022.
Additional Details
Publisher
Published
Sep 1, 2022
Product Code
TBMG-46500
Content Type
Magazine Article
Language
English