DEFINITION:

Main objectives of the studies related to high lift devices are :

• to reduce take-off and landing distances ;
• to get simpler and lighter high lift systems (typically 3 airfoils) with the same efficiency than more complex systems ;
• to reduce aerodynamic noise.

The first topic concerns civil transport and military aircraft. Because the high sweep angle of the wing of supersonic transport and combat aircraft, the leading edge and trailing edge flaps have to be efficient at higher angles of attack for the landing. The multi-surface lifting arrangement is very sensitive to viscous
effects due to the very closed interactions between wakes and boundary layers. Specific distributions of the lift along the wing are also studied in order to modify the topology of the vortices in the wake of big aircraft.

(Source: ACARE Domain 105)

SUBDOMAINS:

1. Computational Fluid Dynamics
2. Wind Tunnel Testing
3. Multi-surface airfoil
4. Leading edge flap; trailing edge flap
5. Noise reduction
6. Wake vortex
7. Air traffic management
8. Certification Requirements