When rigid wing-sail unmanned sailboat sails in gusty or bad sea conditions,the aerodynamic strength acting on the wing sail changes greatly,resulting in poor aerodynamic performance of the airfoil,which affects the sailing performance of un-manned sailboat.Bezier curve equation was used to establish the airfoil mathematical model and NSGA-Ⅱ multi-objective opti-mization algorithm,integrated three-dimensional CAD software SolidWorks and CFD software STAR CCM+,to optimize the rigid wing sail airfoil with maximum thrust and minimum lateral force as the optimization objective.The results show that in the range of 15°sail Angle and(30～80)°heading Angle,the average thrust of the optimized airfoil is higher than that of the original airfoil,and the lateral force is basically unchanged.The optimization of airfoil is helpful to improve the speed and maneuverabili-ty of un manned sailboa t under the condition that the sailing stability is not changed.
维普
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