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On the temporal analysis of acoustic waves using schlieren imaging

Jagadeesh, Chetan and Gowree, Erwin Ricky and Jadidbonab, Hesamaldin and Atkin, Chris J. On the temporal analysis of acoustic waves using schlieren imaging. (2018) Measurement, 116. 507-513. ISSN 1536-6367

(Document in English)

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Official URL: https://doi.org/10.1016/j.measurement.2017.11.018


The primary objective of the present study was to develop a quantitative schlieren-imaging technique that can be used to study the dynamics of instability waves. The technique was initially validated by optically capturing a controlled acoustic wave generated by a compression driver and excellent agreement was obtained with microphone measurements. An underexpanded jet was considered as an ideal test case due to the complexity and multitude of instability mechanism. Further analysis of the underexpanded jet demonstrated that this technique can be used to capture the very high frequency mode related to the phenomenon of screech.

Item Type:Article
Audience (journal):International peer-reviewed journal
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Institution:Other partners > University of London (UNITED KINGDOM)
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Deposited On:07 Nov 2018 14:48

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