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Study of Low Reynolds Number Aerodynamics for Low Aspect Ratio MAV Wing

Aerodynamic research is primarily divided into two parts; fly higher, fly faster and fly low, fly slow. This research is focused towards the later part of aerodynamic advancements, which involves small vehicles flying at slow speeds. Design and manufacturing of these vehicles derives inspiration from natural flyers like bats, birds and insects. Micro Aerial Vehicles have weight up to 100g, span not more than 15 cm and fly at speeds below 15mJs. They operate at chord Reynolds number of 7×104 to 2×105, for which aerodynamics becomes different, as compared to the one, which involve large commercial or military manned aircraft. Research into design and development of MAV has expanded exponentially since 1990s. For this research, recent advancements have been captured that have taken place in low Reynolds number aerodynamics regime with prime focus on rigid fixed wing MAVs. Emphasis on the variation of aerodynamic performance parameters vis-a-vis geometric variables have been deliberated upon in this work. Moreover a data of historically successful MAVs is presented which can be utilized for further research in design of Micro Aerial Vehicles. Statistical analysis of most eminent MAVs proved that research in this field of aviation sciences is an upcoming and emerging area of research, worldwide.