Axisymmetric hub-endwall profile optimization for a transonic fan to improve aerodynamic performance based on an integrated design optimization method

  • Cheng Yan
  • Zeyong Yin
  • Xiuli ShenEmail author
  • Fushui Guo
  • Yu Wu
Industrial Application


This paper investigates an optimization for the axisymmetric hub-endwall profile of a transonic fan designed for a civil high bypass ratio turbofan engine. A time-saving integrated design optimization method is proposed based on a new hub-endwall profile modification method in combination with a novel two-stage polynomial response surface. The profile modification method is proposed to change the profile of the baseline hub curve by moving three control points, so as to redesign the hub-endwall. The two-stage polynomial response surface is proposed to obtain an accurate high-order polynomial while requiring fewer sampling points, so as to reduce the computational cost. The results show that the integrated design optimization method is suitable and valuable. After optimization, the corner separation of the studied fan is weakened, and the stall margin of the core fan is also enlarged. Moreover, the aerodynamic performance of the core fan at the design speed is improved.


Transonic fan Hub-endwall Aerodynamic optimization Polynomial response surface Corner separation 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Replication of results

For the convenience of other researchers, the involved codes of the proposed two-stage polynomial response surface are included in the supplementary online material.

Supplementary material

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Cheng Yan
    • 1
    • 2
  • Zeyong Yin
    • 1
    • 3
  • Xiuli Shen
    • 1
    Email author
  • Fushui Guo
    • 3
  • Yu Wu
    • 3
  1. 1.School of Energy and Power EngineeringBeihang UniversityBeijingChina
  2. 2.Shen Yuan Honors CollegeBeihang UniversityBeijingChina
  3. 3.AECC Commercial Aircraft Engine Co., Ltd.ShanghaiChina

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