Stall Control in Micro Aerial Vehicles

Fixed-wing Micro Aerial Vehicles (MAVs) operate at low Reynolds numbers, hence these are prone to experience aerodynamic stall if operating at high angles of attack or when subjected to wind gusts. The use of Stall Control techniques in fixed-wing MAVs is aimed at extending their performance and flight envelope.

Aerodynamic Characteristics using Passive Stall Control:

Geometrical modifications to the leading edge of a fixed-wing MAV configuration provide improved aerodynamic performance at stalled operating conditions.


Numerical Simulations using Passive Stall Control:

Advanced Detached-Eddy Simulations are used for the detailed investigation of the flow field around the wing configurations operating at moderate to high angles of attack.

Stereoscopic Particle Image Velocimetry using Passive Stall Control:

Detailed qualitative and quantitave analyses of the flow field around the wing configurations are obtained for a better understanding of measured aerodynamic characteristics as well as for improved computational modeling.


Micro Energy Harvesting for Hybrid Stall Control:

Distributed power sources for actuators in active flow control are sought aiming to offset detrimental effects of passive control techniques at pre-stalled operating conditions, without compromising flight endurance.




Dissertations: