Experimental and numerical investigations of wake passing effects upon aerodynamic performance of a LP turbine linear cascade with variable solidity

Ken Ichi Funazaki, Kazutoyo Yamada, Takahiro Ono, Ken Ichi Segawa, Hiroshi Hamazaki, Akira Takahashi, Haruyuki Tanimitsu

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

5 Citations (Scopus)

Abstract

This paper deals with experimental and numerical studies on the flow field around a low-pressure linear turbine cascade whose solidity is changeable. The purpose of them is to clarify the effect of incoming wakes upon the aerodynamic loss of the cascade that is accompanied with separation on the airfoil suction surface, in particular for low Reynolds number conditions and/or low solidity conditions. Cylindrical bars on the timing belts work as wake generator to emulate wakes that impact the cascade. Pneumatic probe measurement is made to obtain total pressure loss distributions downstream of the cascade. Hot-wire probe measurement is also conducted over the airfoil suction surface. Besides, LES-based numerical simulation is executed to deepen the understanding of the interaction of the incoming wakes with the boundary layer containing separation bubble.

Original languageEnglish
Title of host publicationProceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air
Pages637-648
Number of pages12
DOIs
Publication statusPublished - Nov 15 2006
Event2006 ASME 51st Turbo Expo - Barcelona, Spain
Duration: May 6 2006May 11 2006

Publication series

NameProceedings of the ASME Turbo Expo
Volume6 PART A

Other

Other2006 ASME 51st Turbo Expo
CountrySpain
CityBarcelona
Period5/6/065/11/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Funazaki, K. I., Yamada, K., Ono, T., Segawa, K. I., Hamazaki, H., Takahashi, A., & Tanimitsu, H. (2006). Experimental and numerical investigations of wake passing effects upon aerodynamic performance of a LP turbine linear cascade with variable solidity. In Proceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air (pp. 637-648). (Proceedings of the ASME Turbo Expo; Vol. 6 PART A). https://doi.org/10.1115/GT2006-90507