Adjoint optimization of a multi-row transonic compressor based on an extended free-form method

Xin Li*, Tongtong Meng, Weiwei Li, Ling Zhou, Lucheng Ji

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The adjoint method plays an important role in the aerodynamic design of turbomachinery. However, most optimization objects are only local parts of the fluid domain in turbomachinery, such as blade or end-wall. In this study, a novel parameterization method is adopted in the adjoint optimization framework to merge all design spaces together and then a typical multi-row compressor, Stage 35, is optimized by the in-house adjoint optimizer, TurboSim_un. The adiabatic efficiency of STAGE 35 is improved by 1.7%. Results show that the intersection of shock wave and boundary layer is weakened and the performance in mainstream is significantly improved.

Original languageEnglish
Pages (from-to)3202-3214
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume237
Issue number14
DOIs
Publication statusPublished - Nov 2023

Keywords

  • adjoint optimization
  • aerodynamic design
  • extended free-form deformation
  • multi-row compressor

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Li, X., Meng, T., Li, W., Zhou, L., & Ji, L. (2023). Adjoint optimization of a multi-row transonic compressor based on an extended free-form method. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 237(14), 3202-3214. https://doi.org/10.1177/09544100231182265