Application of Hilbert-Huang transform for analyzing non-stationary fluctuations of flow characteristics

D. S. Mironov, V. A. Lebiga, J. J. Miau, A. Yu Pak, V. N. Zinoviev

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

Abstract

One of the most important goals of experimental gas dynamics is to study formation and evolution of fluctuations generated by flow over some obstacles. Such fluctuations are mostly non-stationary. To analyze such experimental data time-frequency techniques are required such as Hilbert-Huang transform. In this paper some results of application of this technique for data analysis are presented. Specific features, advantages and disadvantages of transform are mentioned. Time series analyzed were obtained in experiments on fluctuations measurements behind a circular cylinder in two different wind tunnels at different speeds but close Reynolds number ranges. Amplitudes of fluctuations behind a cylinder were found to have some specific behavior in each case.

Original languageEnglish
Title of host publicationProceedings of the XXV Conference on High-Energy Processes in Condensed Matter, HEPCM 2017
Subtitle of host publicationDedicated to the 60th Anniversary of the Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
EditorsVasily Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415782
DOIs
Publication statusPublished - 2017 Oct 26
Event25th Conference on High-Energy Processes in Condensed Matter, HEPCM 2017 - Novosibirsk, Russian Federation
Duration: 2017 Jun 52017 Jun 9

Publication series

NameAIP Conference Proceedings
Volume1893
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other25th Conference on High-Energy Processes in Condensed Matter, HEPCM 2017
CountryRussian Federation
CityNovosibirsk
Period17-06-0517-06-09

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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