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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2023, Volume 64, Issue 6, Pages 81–84
DOI: https://doi.org/10.15372/PMTF202315302 (Mi pmtf3202) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Turbulence structure in a free bubbly jet: analysis of higher-order statistical moments of velocity fluctuations

A. S. Severinab, M. V. Timoshevskiya, B. B. Ilyushina, K. S. Pervuninc

a S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
b Novosibirsk State University, Novosibirsk, Russia
c Imperial College London, London, UK
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DOI: https://doi.org/10.15372/PMTF202315302
Abstract: This paper presents the results of a statistical analysis of the turbulent structure in a free bubbly jet at a Reynolds number of 12500 based on PIV measurements of the carrier-phase velocity. The distributions of higher-order statistical moments for velocity fluctuations (skewness and excess coefficients) and the energy spectra of turbulence for single-phase and gas-saturated jets were obtained after applying the procedure of statistical filtering to instantaneous velocity fields. The influence of the dispersed phase (bubbles with an average diameter of 0.8 mm) with a volume gas fraction of 0, 1, 2, and 3% for the specified characteristics of the continuous phase was analyzed.
Keywords: free jet, bubbles, gas fraction, turbulence, velocity fluctuations, flow structure, higher-order moments, PIV method, statistical filtering.
Funding agency Grant number
Russian Science Foundation 19-79-30075-П
Ministry of Science and Higher Education of the Russian Federation
Received: 15.05.2023
Revised: 23.05.2023
Accepted: 29.05.2023
English version:
Journal of Applied Mechanics and Technical Physics, 2024, Volume 64, Issue 6, Pages 1011–1014
DOI: https://doi.org/10.1134/S002189442306010X
Bibliographic databases:
Document Type: Article
UDC: 532.542.4, 532.574.7
Language: Russian
Citation: A. S. Severin, M. V. Timoshevskiy, B. B. Ilyushin, K. S. Pervunin, “Turbulence structure in a free bubbly jet: analysis of higher-order statistical moments of velocity fluctuations”, Prikl. Mekh. Tekh. Fiz., 64:6 (2023), 81–84; J. Appl. Mech. Tech. Phys., 64:6 (2024), 1011–1014
Citation in format AMSBIB
\Bibitem{SevTimIly23}
\by A.~S.~Severin, M.~V.~Timoshevskiy, B.~B.~Ilyushin, K.~S.~Pervunin
\paper Turbulence structure in a free bubbly jet: analysis of higher-order statistical moments of velocity fluctuations
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2023
\vol 64
\issue 6
\pages 81--84
\mathnet{http://mi.mathnet.ru/pmtf3202}
\crossref{https://doi.org/10.15372/PMTF202315302}
\elib{https://elibrary.ru/item.asp?id=54943523}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2024
\vol 64
\issue 6
\pages 1011--1014
\crossref{https://doi.org/10.1134/S002189442306010X}
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