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<p>This study investigates the aerodynamic performance of the NACA 6412 airfoil with serrated trailing edges at various angles of attack (AOA) and Reynolds numbers. Two-dimensional and three-dimensional simulations were performed using Large Eddy Simulation (LES) and Reynolds-Averaged Navier-Stokes (RANS) models, and the results were compared with wind tunnel experiments at a Reynolds number of 4.52 × 10<sup>5</sup>. The primary objective was to assess the influence of trailing-edge serrations on lift and drag. The findings indicate that trailing-edge serrations, while generally associated with a slight increase in drag, contribute to improved lift characteristics and thereby enhance the overall aerodynamic efficiency, as reflected in a higher lift-to-drag ratio across varying angles of attack.</p>

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Aerodynamic performance enhancement of NACA 6412 airfoil with serrated trailing edges

  • 期刊论文

  • 发表日期：

    2025年11月11日

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  • Sayyed Samir,
  • Rahul Kumar,
  • Amit Kumar Thakur,
  • Lovi Raj Gupta,
  • Sudhanshu Dogra

摘要

This study investigates the aerodynamic performance of the NACA 6412 airfoil with serrated trailing edges at various angles of attack (AOA) and Reynolds numbers. Two-dimensional and three-dimensional simulations were performed using Large Eddy Simulation (LES) and Reynolds-Averaged Navier-Stokes (RANS) models, and the results were compared with wind tunnel experiments at a Reynolds number of 4.52 × 105. The primary objective was to assess the influence of trailing-edge serrations on lift and drag. The findings indicate that trailing-edge serrations, while generally associated with a slight increase in drag, contribute to improved lift characteristics and thereby enhance the overall aerodynamic efficiency, as reflected in a higher lift-to-drag ratio across varying angles of attack.