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Large-eddy simulations of the near field of a swirling turbulent annular jet. / Ryzhenkov, V.; Mullyadzhanov, R.

In: Journal of Physics: Conference Series, Vol. 980, No. 1, 012020, 19.03.2018.

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Ryzhenkov V, Mullyadzhanov R. Large-eddy simulations of the near field of a swirling turbulent annular jet. Journal of Physics: Conference Series. 2018 Mar 19;980(1):012020. doi: 10.1088/1742-6596/980/1/012020

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Ryzhenkov, V. ; Mullyadzhanov, R. / Large-eddy simulations of the near field of a swirling turbulent annular jet. In: Journal of Physics: Conference Series. 2018 ; Vol. 980, No. 1.

BibTeX

@article{808b6de75eae4008a31b3bdefadf920c,
title = "Large-eddy simulations of the near field of a swirling turbulent annular jet",
abstract = "We perform Large-eddy simulations of an annular swirling turbulent jet for S = 0, S = 0.3 and S = 1, where S is swirl number. The Reynolds number based on the bulk velocity in the feeding channel and the outer diameter was 8900. The analysis showed that the region around the stagnation point in the end of the recirculation zone has a high level of turbulent kinetic energy. The length of the recirculation zone decreases in case for low swirl (S = 0.3) compared to the non-rotating case, while for the higher rotation rate (S = 1) the recirculation bubble becomes enormously long. Spectral analysis showed two peaks corresponding to the Kelvin-Helmholtz instability and some low-frequency oscillations of the recirculating zone.",
keywords = "COHERENT STRUCTURES, VORTEX BREAKDOWN, FLOW, REGION, WAKE",
author = "V. Ryzhenkov and R. Mullyadzhanov",
note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 6th International Conference on Heat and Mass Transfer and Hydrodynamics in Swirling Flows ; Conference date: 21-11-2017 Through 23-11-2017",
year = "2018",
month = mar,
day = "19",
doi = "10.1088/1742-6596/980/1/012020",
language = "English",
volume = "980",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - Large-eddy simulations of the near field of a swirling turbulent annular jet

AU - Ryzhenkov, V.

AU - Mullyadzhanov, R.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2018/3/19

Y1 - 2018/3/19

N2 - We perform Large-eddy simulations of an annular swirling turbulent jet for S = 0, S = 0.3 and S = 1, where S is swirl number. The Reynolds number based on the bulk velocity in the feeding channel and the outer diameter was 8900. The analysis showed that the region around the stagnation point in the end of the recirculation zone has a high level of turbulent kinetic energy. The length of the recirculation zone decreases in case for low swirl (S = 0.3) compared to the non-rotating case, while for the higher rotation rate (S = 1) the recirculation bubble becomes enormously long. Spectral analysis showed two peaks corresponding to the Kelvin-Helmholtz instability and some low-frequency oscillations of the recirculating zone.

AB - We perform Large-eddy simulations of an annular swirling turbulent jet for S = 0, S = 0.3 and S = 1, where S is swirl number. The Reynolds number based on the bulk velocity in the feeding channel and the outer diameter was 8900. The analysis showed that the region around the stagnation point in the end of the recirculation zone has a high level of turbulent kinetic energy. The length of the recirculation zone decreases in case for low swirl (S = 0.3) compared to the non-rotating case, while for the higher rotation rate (S = 1) the recirculation bubble becomes enormously long. Spectral analysis showed two peaks corresponding to the Kelvin-Helmholtz instability and some low-frequency oscillations of the recirculating zone.

KW - COHERENT STRUCTURES

KW - VORTEX BREAKDOWN

KW - FLOW

KW - REGION

KW - WAKE

UR - http://www.scopus.com/inward/record.url?scp=85045928377&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/980/1/012020

DO - 10.1088/1742-6596/980/1/012020

M3 - Conference article

AN - SCOPUS:85045928377

VL - 980

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012020

T2 - 6th International Conference on Heat and Mass Transfer and Hydrodynamics in Swirling Flows

Y2 - 21 November 2017 through 23 November 2017

ER -

ID: 12843316