A fast-response pressure-sensitive paint (PSP) technique was applied to the measurement of unsteady surface pressure of an oscillating cascade blade in a transonic flow. A linear cascade was used, and its central blade was oscillated in a translational manner. The unsteady pressure distributions of the oscillating blade and two stationary neighbors were measured using the fast-response PSP technique, and the unsteady aerodynamic force on the blade was obtained by integrating the data obtained on the pressures. The measurements made with the PSP technique were compared with those obtained by conventional methods for the purpose of validation. From the results, the PSP technique was revealed to be capable of measuring the unsteady surface pressure, which is used for flutter analysis in transonic conditions.
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ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
June 26–30, 2017
Charlotte, North Carolina, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5093-0
PROCEEDINGS PAPER
Unsteady Pressure Measurement on Oscillating Blade in Transonic Flow Using Fast-Response Pressure-Sensitive Paint
Toshinori Watanabe,
Toshinori Watanabe
University of Tokyo, Tokyo, Japan
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Toshihiko Azuma,
Toshihiko Azuma
University of Tokyo, Tokyo, Japan
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Seiji Uzawa,
Seiji Uzawa
University of Tokyo, Tokyo, Japan
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Takehiro Himeno,
Takehiro Himeno
University of Tokyo, Tokyo, Japan
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Chihiro Inoue
Chihiro Inoue
University of Tokyo, Tokyo, Japan
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Toshinori Watanabe
University of Tokyo, Tokyo, Japan
Toshihiko Azuma
University of Tokyo, Tokyo, Japan
Seiji Uzawa
University of Tokyo, Tokyo, Japan
Takehiro Himeno
University of Tokyo, Tokyo, Japan
Chihiro Inoue
University of Tokyo, Tokyo, Japan
Paper No:
GT2017-64211, V07BT36A013; 9 pages
Published Online:
August 17, 2017
Citation
Watanabe, T, Azuma, T, Uzawa, S, Himeno, T, & Inoue, C. "Unsteady Pressure Measurement on Oscillating Blade in Transonic Flow Using Fast-Response Pressure-Sensitive Paint." Proceedings of the ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. Volume 7B: Structures and Dynamics. Charlotte, North Carolina, USA. June 26–30, 2017. V07BT36A013. ASME. https://doi.org/10.1115/GT2017-64211
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