Computational Investigation Of Wind Turbine With Winglets

Abstract

Wind energy is became vital and ecofriendly. The development of the wind turbine is an evolution and presently 3 blade single rotor wind turbines are commonly used around the world. These types use mega structures (> 50 tons) for producing 1 to 6 MW power in off and on shore areas. The 3 blade single rotor wind turbines play main role in the wind power generation, however it may have some weak points. Lift is an useful component to produce more power. Induced drag is one kind of drag which arises during production of lift in the form of tip vortices in wind turbine blade. These vortices travel over turbine blade during operation and collapse the flow and lead to reduction in lift force. In aircrafts, same problem is solved by providing winglets and this is tried in this project for wind turbine. In present work, design and analysis of wind turbine with winglet is proposed. Winglet height is varied from 10mm to 40 mm in increment of 10mm and cross section varied as NACA 0012 and 0018. Computational investigation of conventional rotor and modified rotor is done. Ultimately, experimental investigation will be done.