Pressure Distribution on Blade Aerofoil for Wind Turbines
The research work of special purpose airfoil for wind turbines is done to reach a great efficiency of energy capture.The shape of the airfoil is expressed analytically as a function of the three parameters,which control the maximum camber,maximum camber location and maximum thickness of the airfoil.The velocity potential on the airfoil used a panel method is presented.A linear doublet distribution is applied on each panel.The inviscid potential flow governed by the Laplace equation provides the tangential velocity distribution on the airfoil＇s surface.The flow considered as incompressible and irrotational.The external Dirichlet boundary condition and Kutta condition are satisfied.The pressure distribution is computed from the velocity field using the Bernoulli equation.The stagnation location and the maximum of inducing pressure over the body surface are calculated.Aerodynamic performances of the airfoils are evaluated.
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