Wing high-lift device and wing high-lift method

Abstract

The invention discloses a wing high-lift device and a wing high-lift method. The wing high-lift device comprises a wing upper surface, a wing lower surface, a wing rear edge and a wing high-lift structure, wherein the wing high-lift structure comprises a first jet cavity and a second jet cavity arranged between the wing upper surface and the wing lower surface, the isolation plate is arranged between the first jet flow cavity and the second jet flow cavity; the wing lift augmentation structure further comprises a first jet flow opening and a second jet flow opening which are formed in the rearedge of the wing, the first jet flow opening communicates with the first jet flow cavity, the second jet flow opening communicates with the second jet flow cavity, the first jet flow cavity is located between the upper surface of the wing and the isolation plate, and the second jet flow cavity is located between the lower surface of the wing and the isolation plate; and therefore, the structure of the synthetic double-jet exciter is formed. Based on the double effects of the Coanda effect and the virtual trailing edge flap generated by the synthetic double-jet technology, the traditional circular rector lift augmentation technology and the virtual trailing edge flap effect are combined, the purpose of lift augmentation is achieved, and the lift augmentation efficiency of the traditional circular rector lift augmentation technology is improved.

Description

technical field [0001] The invention relates to the technical field of active flow control, in particular to a wing lift device and a wing lift method. Background technique [0002] At present, the new generation of aircraft has taken ultra-short take-off and landing, no control surface manipulation, etc. as important performance indicators. As the main means to help achieve high-performance indicators, increased lift technology has increasingly attracted widespread attention and research. [0003] Currently widely used wing lift devices mainly include mechanical moving parts such as flaps, slats, and multi-section wings. While increasing the lift, the mechanical lift device also brings many problems: the moving parts require a complex and heavy mechanical control system, which is not conducive to reducing the size and weight of the aircraft; it requires frequent overhaul and maintenance, which increases the maintenance cost of the aircraft. To avoid the above problems, it ...

AI Technical Summary

Problems solved by technology

While increasing the lift, the mechanical lift device also brings many problems: the moving parts require a complicated and heavy mechanical control system, which is not conducive to reducing the volume and weight of the aircraft; frequent inspection and maintenance are required, which increases the maintenance cost of the aircraft, etc.

At present, the use of circulation control technology to increase lift still faces problems such as low efficiency and inconvenient application. One of the main reasons is the problem of air source

Images