Optimization design for aerodynamic performance of fan-wing aircraft

Multi-point/objective design optimization technique combined with numerical simulation methods was adopted to study the optimization design for aerodynamic performance of fan-wing aircrafts. By comparing the present computational fluid dynamics (CFD) results with corresponding literature data, it proves that the numerical methods are reliable. The optimized lift and drag forces of a fan-wing aircraft were obtained for different structure parameters, and the factors with major influence on the optimization were also given. The results show that the approximate mathematical model is reliable. It can be adopted for engineering problems. Due to the optimization, the lift and thrust values of the fan-wing aircraft increases, and the aerodynamic performance dramatically improves.