CFD Analysis & Experimental investigation of NACA0018 Blade Profile for Darrieus Turbine

ABSTRACT In present work an attempt is made to investigate the Lift and Drag forces for wind turbine blade at 4000 Reynolds number and different chord length i.e.15cm & 25 cm. In this work NACA0018 airfoil profile is considered for analysis of wind turbine blade. The Lift and Drag forces are calculated at different angle of attack varying from 0o to 80o by Computational Fluid Dynamics (CFD) analysis. The values of CL and CD for this Reynolds number is much important in analysis of Darrieus and horizontal axis type of wind turbine blade, still it these values are not available from the literature reviewed . From CFD analysis it is concluded that as Reynolds number increase lift forces and drag forces decreases for particular chord length and if chord length increases CL and CD increases. And Comparison has been done on NACA0018 for all two chord length and from that we concluded that NACA0018 at 15cm provides maximum lift and drag.