Abstract
Flow separation causes loss in performance of wind turbine blade. Investigation of S819 aerofoil through passive flow control technique is done using CFD code Fluent. In present work, numerical modelling and simulation of wind turbine blade aerofoil are performed. CFD simulation of S819 aerofoil is performed at various incident angles 0°–30°. To control the flow separation over S819 aerofoil, a new technique with leading edge hole is provided. CFD investigation is done for both types of aerofoil using k − ω turbulent equation. Comparison is made between simple aerofoil and controlled aerofoil where results show delay in flow separation and improvement in lift force at different angle of attacks while reducing the drag force.
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