Comparison of Experimental and Numerical Performances of a Wind Turbine Airfoil Using XFOIL and Computational Fluid Dynamics Simulation

Zakaria Belfkira; Hamid Mounir; Abdelghani El Marjani

doi:10.15866/iremos.v12i4.16175

Comparison of Experimental and Numerical Performances of a Wind Turbine Airfoil Using XFOIL and Computational Fluid Dynamics Simulation

Zakaria Belfkira^(1*), Hamid Mounir⁽²⁾, Abdelghani El Marjani⁽³⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iremos.v12i4.16175

Abstract

In the present work an investigation of the lift and drag forces has been made in order to analyze the NACA63-618 wind turbine airfoil. This analysis has been performed for different angles of attack varying from -8° to 8° while holding the Reynolds number constant (Re=3×106). The calculation has been carried out using two numerical simulations methods: The Computational Fluid Dynamics (CFD) and the XFOIL code. Firstly, ANSYS® DesignModelerTM has been used to perform the geometry model, then the generation of the appropriate mesh has been done by ANSYS® ICEM CFDTM; after that, the simulation was established by ANSYS® Fluent® and finally, the XFOIL code has been used to reinforce the numerical results. After the validation of the present work by comparing both ANSYS® CFDTM and XFOIL results with the experimental data, it has been shown that between the four forms of turbulence models used in ANSYS® CFDTM simulation and XFOIL analysis, only Spalart Allmaras model and XFOIL have given the best prediction results for the studied airfoil. For the three other turbulence models, Shear Stress Transport (SST) k-ω, Standard k-( and Re-Normalization Group (RNG) k-( the drag coefficient has presented some deviations in comparison with results issued from the wind tunnel measurements.
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Keywords

Airfoil; Angle of Attack; Drag Coefficient; Computational Fluid Dynamics (CFD); Lift Coefficient; XFOIL

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