Abstract
This study investigates the aerodynamic performance of two bird tail shapes forked and rounded using CFD simulations in ANSYS Fluent. The geometry of the bird models, including the tail configurations, was developed using CATIA software to ensure precise 3D modeling. The primary focus was on calculating key aerodynamic parameters, including the lift coefficient and drag coefficient, as well as Lift-to-Drag ratio. Mesh convergence studies were conducted to ensure accurate and reliable simulation results, with the final mesh configuration chosen after confirming stability and mesh independence.The aerodynamic performance of the tail models was analyzed across various angles of attack. The CFD simulations provided insights into the behavior of the bird model under different flight conditions. By examining the lift and drag coefficients, the study identified the optimal performance points and the stall angles for both tail shapes. The simulations were further supported by hand calculations to validate the results and ensure consistency in the aerodynamic evaluation.
The findings of this study demonstrate that the tail shape has a significant impact on the aerodynamic efficiency of the bird model. Both the forked and rounded tail shapes showed distinct aerodynamic characteristics, with each offering benefits under specific conditions. The results highlight the importance of optimizing the tail shape for enhanced lift-to-drag ratios, contributing to more efficient bird flight dynamics. The combination of CFD simulations and hand calculations provided a comprehensive understanding of the aerodynamic behavior, supporting future design considerations for improving flight performance.
