The End Plate Parameter Optimization of Joined Wing Based on The Orthogonal Experiment

To reduce the influence of the end plate geometric parameters for joined wing aerodynamic characteristics of the layout, the study was design aimed at three kinds of angle parameters of end plate in the joined wing with the orthogonal experiment method. Simulation calculation of the model was made with the CFD method for analyzing the lift-drag ratio and pitching moment characteristics. The results showed that deflection angle is the main factor for influencing the lift-drag ratio and pitching moment, while the camber angle and the axial angle have a poor influence. The optimized model has higher lift-drag ratio and better static stability compared with the reference model. The study results can provide theoretical basis for the design of joined wing layout.