Numerical and Experimental Investigation of Airfoil Derived from Eagle

Bionic aerodynamics is an emerging R&D sector that provides excellent cost-effective and efficient remedies to the existing shortcomings. Aerodynamic flow over birds, insects, and bats is the subject of bionics. Airfoils acquired from birds are currently emerging as a sector of Bionic Research and Development. An airfoil is derived from the Golden eagle bird’s wing, and it is processed and replotted in MATLAB. Numerical investigation is done with lifting vortex panel method and CFD method. The CFD method was executed with the k-ω SST model. Results from the lifting vortex panel technique and CFD differ by around 12%. The airfoil was experimentally examined in an open-circuit subsonic wind tunnel after being 3D printed in Flash Forge™ at a higher resolution. The eagle-like airfoil (YSMAR01) results were compared with the Stork and Hawk-like airfoils. The airfoil never found a stall. The \(\left( \frac{L}{D} \right)_{\max }\) occurs at 5°AOA and is 44.45% higher than the Hawk-like airfoil and 3.29% lower than Stork-like airfoil. The CL of the eagle-like airfoil increases linearly with angle of attack.