Author(s): Md. Mehdi Masud Talukder, Md. Rukanuzzaman Rukan, Muhammed Kamrul Islam
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 5 - Issue. 01 , January - 2016
Nowadays renewable energy has become the prime source of clean form of energy. Among various renewable energy sources, wind energy has become one of the key solutions to the prevailing energy crisis. To economically produce the maximum power by using wind turbine the aerodynamic performance of the blade profile must be assessed. The key parameters in analyzing the wind-turbine blade performance are lift and drag coefficient. In order to gain the maximum power from the wind turbine the maximum sliding ratio is desired. In this probe a comparative aerodynamic performance analysis of NREL’s S819 and S821 airfoils were performed based on finite volume approach using a computational fluid dynamics (CFD) method. Changing the angle of attack and wind speed different aerodynamic parameters such as the drag coefficient, lift coefficient and pressure distribution over the airfoils were determined computationally. The computational results were verified experimentally by testing the wooden models of the airfoils in a subsonic open circuit suction type wind tunnel. The comparison with the experimental data indicate that the CFD approach applied in this investigation can precisely predict the aerodynamic characteristics of the wind-turbine blades.
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