Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis

Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Sasuga Itou, Seiichi Ibaraki, Kenichiro Iwakiri, Yoshihiro Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

An optimum aerodynamic design method for centrifugal compressor impeller has been developed. The present optimum design method is using a genetic algorithm (GA) and a two-dimensional inverse blade design method based on a meridional viscous flow analysis. In the meridional viscous flow analysis, an axisymmetric viscous flow is numerically analyzed on a two-dimensional meridional grid to determine the flow distribution around the impeller. Full and splitter blade effects to the flow field are successfully evaluated in the meridional viscous flow analysis by a blade force modeling. In the inverse blade design procedure, blade loading distribution is given as the design variable. In the optimization procedure, the total pressure rise and adiabatic efficiency obtained from the meridional viscous flow analysis are employed as objective functions. Aerodynamic performance and three-dimensional flow fields in the Pareto-optimum design and conventional design cases have been investigated by three-dimensional Reynolds averaged Navier-Stokes (3D-RANS) and experimental analyses. The analyses results show performance improvements and suppressions of flow separations on the suction surfaces in the optimum design cases. Therefore, the present aerodynamic optimization using the inverse method based on the meridional viscous flow analysis is successfully achieved.

Original languageEnglish
Title of host publicationTurbomachinery
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791850800
DOIs
Publication statusPublished - Jan 1 2017
EventASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017 - Charlotte, United States
Duration: Jun 26 2017Jun 30 2017

Publication series

NameProceedings of the ASME Turbo Expo
Volume2C-2017

Other

OtherASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017
CountryUnited States
CityCharlotte
Period6/26/176/30/17

Fingerprint

Centrifugal compressors
Viscous flow
Aerodynamics
Flow fields
Flow separation
Genetic algorithms
Optimum design

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Oka, N., Furukawa, M., Yamada, K., Itou, S., Ibaraki, S., Iwakiri, K., & Hayashi, Y. (2017). Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis. In Turbomachinery (Proceedings of the ASME Turbo Expo; Vol. 2C-2017). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/GT2017-63539

Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis. / Oka, Nobuhito; Furukawa, Masato; Yamada, Kazutoyo; Itou, Sasuga; Ibaraki, Seiichi; Iwakiri, Kenichiro; Hayashi, Yoshihiro.

Turbomachinery. American Society of Mechanical Engineers (ASME), 2017. (Proceedings of the ASME Turbo Expo; Vol. 2C-2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oka, N, Furukawa, M, Yamada, K, Itou, S, Ibaraki, S, Iwakiri, K & Hayashi, Y 2017, Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis. in Turbomachinery. Proceedings of the ASME Turbo Expo, vol. 2C-2017, American Society of Mechanical Engineers (ASME), ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017, Charlotte, United States, 6/26/17. https://doi.org/10.1115/GT2017-63539
Oka N, Furukawa M, Yamada K, Itou S, Ibaraki S, Iwakiri K et al. Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis. In Turbomachinery. American Society of Mechanical Engineers (ASME). 2017. (Proceedings of the ASME Turbo Expo). https://doi.org/10.1115/GT2017-63539
Oka, Nobuhito ; Furukawa, Masato ; Yamada, Kazutoyo ; Itou, Sasuga ; Ibaraki, Seiichi ; Iwakiri, Kenichiro ; Hayashi, Yoshihiro. / Optimum aerodynamic design of centrifugal compressor impeller using an inverse method based on meridional viscous flow analysis. Turbomachinery. American Society of Mechanical Engineers (ASME), 2017. (Proceedings of the ASME Turbo Expo).
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