This work includes the aerodynamic and static structural analysis of newly designed bio-mimetic corrugated aerofoil inspired from dragonfly forewing. Dragonfly corrugated aerofoil structure used in this research comprised of basal wing section located near the radius of the forewing. These corrugations define the stressed skin structure composed of grider-like veins structure and thin cuticle membrane which provides sophisticated mechanical advantage for resisting longitudinal bending while facilitating wing camber and torsion. Dragonflies are known for their impressive flight performance .They carry aerodynamic and inertial loads. A computational analysis is done on a newly designed dragonfly corrugated aerofoil at Reynolds number of 15632, where flow is assumed to be laminar, steady, incompressible and two dimensional. The research comprises of the aerodynamic flow analysis of 2-D dragonfly corrugated aerofoil and static structural analysis using Ansys Fluent and Ansys Mechanical APDL. It is found that the design criteria being used and simulation carried out on corrugated aerofoil is giving much better results compared to earlier studies. The structural analysis also shows that it can resist maximum pressure loads and provides high rigidity to the span of the wing. These finding enhances the knowledge of insect inspired corrugated wing structure and facilitate the application for improved design of artificial wings for MAVs and UAVs.

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Recently, with the increase in power generation and consumption needs of our planet, the global community has been concerned by two major issues: the severe environmental impact of burning fossil fuels and the availability of finite resources of fossil fuel for conventional power generation. These two factors are the main reason behind the search of alternative methods to harvest energy from alternate renewable sources. One such alternate method is the use of bio-inspired unsteady flapping wing power generation which has gained much interest from engineering community. At low Reynolds number, natural flyers and swimmers such as birds, insects and fish employ the unsteady vortices to generate thrust and lift which makes them one the most agile and efficient flyers and swimmers. Better understanding of the aerodynamic forces generation mechanisms associated with the flow over flapping wings can help us develop efficient micro and nano aerial vehicles (MAVs/NAVs) and with the proper phasing between different modes of wing motion, flapping wings can also be employed for the power extraction from low speed river or ocean tidal streams. It has been shown that flapping wing power generators can harness power with comparable efficiencies to that of conventional rotary wind turbines. The aerodynamics forces generation by flapping wings is a complex phenomenon and depends on many parameters like the mode of motion, phase difference between different modes, amplitude of flapping, wing shape and wing flexibility etc. Lately, there has been concerted effort to find the optimal conditions to generate maximum thrust and lift using flapping wings. In this paper, a brief overview of fundamentals of flapping wing aerodynamics and recent advancements in the research and development of the flapping.