03.4 - Applied Aerodynamics
AERO-KINEMATIC OPTIMIZATION OF HIGH-LIFT DEVICES WITH DOWNWARD DEFLECTION OF SPOILER
C. Wei¹, C. Rao¹, L. Yang¹, T. Zhang¹; ¹Aerodynamics Research Institute, China
In this paper, based on the aerodynamic optimization software named XunZhu of Aerodynamics Research Institute, Aero-Kinematic optimization of high-lift devices with downward deflection of spoiler was established. The surrogate-based optimization method was adopted, coupled with the parameterized module of high-lift devices mechanisms, the RBF mesh deformation method and the high-confidence numerical simulation method, to construct the objective function of the aerodynamic performance of multi-element airfoils at typical section of wing, which was used to evaluate the aerodynamic performance of the high-lift device. The optimization cases show that the Pareto front which satisfies the constraints is get and the lift coefficients of design points 1 and 2 are greatly improved, while the distance from the hinge point of the kinematic mechanism to the wing is reduced. The 3d high-lift device calculation evaluation shows that the linear segment and the maximum lift coefficient of the optimized configuration are greatly improved. The optimization design method of the high-lift devices subject to kinematic constraints developed in this paper is effective.