Unsteady pressure measurement on oscillating blade in transonic flow using fast-response pressure- sensitive paint

Toshinori Watanabe, Toshihiko Azuma, Seiji Uzawa, Takehiro Himeno, Chihiro Inoue

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number061003
JournalJournal of Turbomachinery
Volume140
Issue number6
DOIs
Publication statusPublished - May 1 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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