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- Title
Numerical Investigation of the Enhancement of the Aerodynamic Performance for Newly Modified Blended Airfoils Utilizing S809, S829, and NACA 2412 Baseline Shapes.
- Authors
Uddin, S. M. Nasim; Haque, Mohammad Rejaul; Haque, M. Merajul; Alam, Md. Fazlay; Hamja, Abu
- Abstract
Several important factors, including the lift-to-drag ratio, affect an airfoil's overall performance. An airfoil's efficiency is increased by a higher lift-to-drag ratio. For years, scientists have worked to improve the lift-to-drag ratio of airfoils. Modifications to the surface of an airfoil include vortex generators, winglets, flaps, dimples, and more. The focus of the current work is on blended airfoils, a type of modification where the top surface of one airfoil is overlapped with the bottom surface of another to enhance the performance of the airfoils. The 2D simulation was conducted using the k-ω shear-stress transfer turbulence model. NREL's S809, S829, and NACA 2412 airfoils' comparative aerodynamic performance analysis was carried out using ANSYS Fluent. The newly developed modified blended airfoil had a top surface made of S809 (bottom NACA 2412), while the second had a bottom surface built of NACA 2412 (top S829). Together, S829 and NACA 2412 provide a 539.14% larger sliding ratio than S829, while S809 and NACA 2412 provide a 117.7% higher sliding ratio than S809. The drag, lift, and pressure distribution of airfoils varied with the angle of attack and wind speed. This modified blended airfoil may be used by low-speed aircraft, vertical axis wind turbines, and horizontal axis wind turbines.
- Subjects
AEROFOILS; VERTICAL axis wind turbines; VORTEX generators; HORIZONTAL axis wind turbines
- Publication
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ), 2024, Vol 49, Issue 2, p2233
- ISSN
2193-567X
- Publication type
Article
- DOI
10.1007/s13369-023-08180-2