【摘要】 本文对一台多级压气机进口级转子的四种不同轮毂造型进行了比较研究。通过三维数值模拟证明,不同轮毂造型对跨声速压气机转子的流场有明显的影响,从而影响转子设计点性能。研究结果表明:与传统的直线轮毂型线相比,凹形轮毂能够提高流通能力,提高转子的加功量,使得跨音转子的流量上升,根部流场改善,效率上升;凸型轮毂会降低流通能力,降低加功量,使得跨音转子的流量、压比、效率均下降;轮毂型线对子午流面产生的影响,主要体现在对激波位置的影响和径向流动的影响;在效率和负荷之间权衡,本文最终认为采用S型轮毂是一种比较合适的选择。更多还原

【Abstract】 The paper present the different performances of four different hub curve shape in transonic compressor rotors by CFD method.The results show that different hub design have obvious influences both on the performances and the flow fields.Comparing with the linear hub design,concave hub design improves the flow capacity near the rotor’s hub,so increase the work capacity of blade hub fields.And also the concave hub design decrease the hub blockage and loss coming of hub corner separation.Convex hub design deteriorate the hub fields and performance.The S-shape hub design is a balanced design for efficiency and wok.The main effect of hub shape design action on shock-wave locations and racial flows.更多还原