Numerical study of airfoil with wavy leading edge at high Reynolds number regime

Keywords: Wavy leading edge airfoil, CFD analysis, RANS simulation


In this work, a numerical study of flow around an airfoil with wavy leading Edge is presented at a Reynolds number of 3X106. The flow is resolved by considering the RANS (Reynolds Average Navier-Stokes) equations. The baseline geometry is based on the NACA 0021 profile. The wavy leading edge has an amplitude of 3% and wavelength of 11%, both with respect to the airfoil chord. Cases without and with wavy leading edges are simulated and compared. Initially, studies of the numerical sensitivity with respect to the obtained results, considering aspects such as turbulence modeling and mesh refinement, are carried out as well as by comparison with corresponding results in the literature. Numerical data such as pressure distribution, shear stress lines on the wing surface, and aerodynamics coefficients are used to describe and investigate the flow features around the wavy leading airfoil. Comparisons between the straight leading edge and the wavy leading edge cases shows an increase of the maximum lift coefficient as well as stall angle for the wavy leading edge configuration. In addition, at an angle of attack near the stall, the present numerical results shows an increase of the drag coefficient with the wavy leading edge airfoil when compared with the corresponding straight leading edge case.

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Author Biographies

William Denner Pires Fonseca, University of Campinas

Department of Energy.

Rafael Rosario Da Silva, University of Campinas

Department of Energy.

Reinaldo Marcondes Orselli, Federal University of ABC

Center for Engineering, Modeling and Applied Social Science - Aerospace Engineering.

Adson Agrico de Paula, Aeronautics Institute of Technology

Aircraft Design Department, Assistant Professor.

Ricardo Galdino da Silva, Institute of Aeronautics and Space

Department of Aerospace Science and Technology.


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How to Cite
Pires Fonseca W. D., Da Silva R. R., Marcondes Orselli R., Agrico de Paula A., & Galdino da Silva R. (2021). Numerical study of airfoil with wavy leading edge at high Reynolds number regime. Revista Facultad De Ingeniería Universidad De Antioquia, (98), 69-77.