Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Research on the influence of plane shape and airfoil profile on aerodynamic characteristics of rudder wing
| DOI: | 10.11809/bqzbgcxb2025.03.003 |
| Keywords: | rudder wing; airfoil profile; plane shape; aerodynamic characteristics; lift drag ratio |
| Abstract: | The combination of rudder wings with different plane shapes and wing types will produce different aerodynamic characteristics during the flight of the projectile, thus affecting the trajectory correction process of the guided projectile. Four plane shapes and three wing types are selected to construct a three dimensional model of the rudder wing for aerodynamic simulation and analysis.And the aerodynamic parameters such as drag coefficient, pitching moment coefficient and lift to drag ratio of the rudder wings with different plane shapes and wing types at different Mach numbers are investigated by using the computational fluid dynamics (CFD) method considering the effect of the boundary layer to reveal the influence on the aerodynamic characteristics of the rudder wing. The results show that: 1) The double arc airfoil and asymmetric trapezoid matched rudder wing has a smaller drag coefficient and a larger lift to drag ratio in all phases, and the pitching moment coefficient is also larger than that of the other rudder wings, which is more stable and shows excellent aerodynamic performance.2) The spike airfoil and rectangular matched rudder wing has the largest lift to drag ratio in the phase where the speed is less than Mach 0.8, and the trapezoidal and asymmetric trapezoid matched rudder wings have the largest lift to drag ratio at the phase when the speed is between Mach 0.8 to Mach 1.6, and the double arc and asymmetric trapezoidal matched rudder wings have the largest lift to drag ratio at speeds greater than Mach 1.6. 3) The trapezoidal airfoil matched with the asymmetric trapezoid has the largest pitching moment coefficient in the phase before speeds less than Mach 1.2, and the double arc airfoil matched with the asymmetric trapezoid has the largest pitching moment coefficient after speeds greater than Mach 1.2. |
| Issue: | Vol. 46 No. 3 (2025) |
| Published: | 2025-03-31 |