Experimental investigation on correlations between transonic tone and flow oscillation in a supersonic nozzle

Seungyoung Shin, Mkiko Yonamine, Akira Tokumoto, Hiroki Kuguyama, Toshiyuki Aoki

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

Abstract

The present paper describes an experimental work to investigate characteristics and generation mechanism of the transonic tone and this work attempts to correlate the transonic tone to flow oscillation from a shock-containing convergent-divergent nozzle. A wall pressure measurement, acoustic measurement and a high speed video camera for Schlieren visualization to visualize shock oscillations are used to investigate the tone generation mechanism. All measurements are set up to get data at the same time. For the conditions of this study the transonic tone takes place in one or two stages or no transonic tone occurs. And it is found that there is close correlation between transonic tone frequency and wall pressure fluctuation or shock oscillation each other when the transonic tone is diffusing from the nozzle.

Original languageEnglish
Title of host publication40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
Pages425-429
Number of pages5
Publication statusPublished - Dec 1 2011
Event40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011 - Osaka, Japan
Duration: Sep 4 2011Sep 7 2011

Publication series

Name40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
Volume1

Other

Other40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
CountryJapan
CityOsaka
Period9/4/119/7/11

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Shin, S., Yonamine, M., Tokumoto, A., Kuguyama, H., & Aoki, T. (2011). Experimental investigation on correlations between transonic tone and flow oscillation in a supersonic nozzle. In 40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011 (pp. 425-429). (40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011; Vol. 1).