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 per...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^(5).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.展开更多
文摘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^(5).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.
