Integrated passage design based on extended free-form deformation and adjoint optimization

Xin LI, Tongtong MENG, Weiwei Li*, Ling ZHOU, Lucheng JI

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Inspired by the three-dimensional design of flow passages in turbomachinery, this study proposes the concept of integrated passage design. The capability of adjoint method for efficient optimization and the flexibility of the parameterization method based on extended free-form deformation have been considered to develop a feasible approach to design an integrated passage. This concept was applied to redesign a typical transonic fan, Rotor 67, and the results were analyzed by CFX. It is shown that the passage was adequately adjusted in all three dimensions and reduced the strength of shock wave and wake-induced flow. In particular, the secondary flow was appropriately reorganized and the corner separation was well controlled in the end wall region, leading to significant improvements in adiabatic efficiency and diffusion.

Original languageEnglish
Pages (from-to)148-164
Number of pages17
JournalChinese Journal of Aeronautics
Volume36
Issue number4
DOIs
Publication statusPublished - Apr 2023

Keywords

  • Adjoint optimization
  • Aerodynamic
  • Extended free-form deformation
  • Integrated passage design
  • Transonic flow
  • Turbomachinery

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LI, X., MENG, T., Li, W., ZHOU, L., & JI, L. (2023). Integrated passage design based on extended free-form deformation and adjoint optimization. Chinese Journal of Aeronautics, 36(4), 148-164. https://doi.org/10.1016/j.cja.2022.11.021