Arief Hadiyanto, Dominicus Danardono Dwi Prija TjahjanaThis email address is being protected from spambots. You need JavaScript enabled to view it., Eko Prasetya Budiana
Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
Received: February 2, 2023 Accepted: June 30, 2023 Publication Date: September 20, 2023
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
Damage to the leading edge in the form of dents due to bird strikes causes a decrease in the airfoil performance. Therefore, the current study provides a numerical analysis of the aerodynamic characteristics of the original NACA 2412 airfoil and the dent airfoil with depth variation. Several airfoils were compared for their lift and drag coefficients at an angle of attack of 0◦ to 6◦ . The free air flow velocity was kept constant at the Reynolds number of 3.1 × 106 . Computational fluid dynamics (CFD) was used, employing the k-ω SST turbulence model to obtain accurate calculations on the airfoil surface. The simulation results revealed that the dented NACA 2412 airfoil lift coefficient (CL) decreased while the drag coefficient (CD) increased, where the value varied with changes in the angle of attack and depth of the dent.
Keywords: Bird strike, Lift, Drag, CFD
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