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针对跨声速风扇动叶中掠、弯结合叶片基于控制点的B样条曲线对积叠线进行参数化,以掠、弯为设计自由度,应用实验设计、三维粘性流场求解、响应面模型及遗传算法对Rotor 67以近尖峰效率工况点为设计点对风扇转子进行了气动优化设计,得到了前掠与弯向旋转方向的复合设计叶片,其总压比有较明显提高。但由于优化是在单一工况点下进行的,其变工况性能不佳。
Aiming at the swept and curved blade with transonic fan, the control points based on the B-spline curves are used to parameterize the stacking lines. The design freedom is grasped by sweeping and bending. The experimental design, three-dimensional viscous flow field solution and response surface model And Genetic Algorithm (PSO) were used to optimize the aerodynamic design of Rotor 67 rotor at the near peak efficiency point. The composite blades with forward swept and turning directions were obtained, and the total pressure ratio was significantly improved. However, because the optimization is carried out under a single operating point, its performance is not good.