TY - JOUR

T1 - Large-eddy simulations of variable-density turbulent jets

AU - Ivashchenko, V.

AU - Ryzhenkov, V.

AU - Mullyadzhanov, R.

N1 - Publisher Copyright: © 2018 Institute of Physics Publishing. All rights reserved.

PY - 2018/12/7

Y1 - 2018/12/7

N2 - We perform Large-eddy simulations (LES) of turbulent variable-density jets. A fully developed turbulent pipe flow of air at the Reynolds number of Re = 5300 enters a large reservoir of air, helium or carbon dioxide. The impulsely starting jets as well as the fully developed stationary flows are considered. In the first case we show that the air stream propagates faster in the light medium of helium as compared to other gas pairs, while in the fully developed case the same helium-air pair exhibits the lowest level of turbulent fluctuations.

AB - We perform Large-eddy simulations (LES) of turbulent variable-density jets. A fully developed turbulent pipe flow of air at the Reynolds number of Re = 5300 enters a large reservoir of air, helium or carbon dioxide. The impulsely starting jets as well as the fully developed stationary flows are considered. In the first case we show that the air stream propagates faster in the light medium of helium as compared to other gas pairs, while in the fully developed case the same helium-air pair exhibits the lowest level of turbulent fluctuations.

KW - jet flow

KW - mixing

KW - turbulence

KW - variable density

KW - NUMERICAL-SIMULATION

UR - http://www.scopus.com/inward/record.url?scp=85058642820&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1128/1/012016

DO - 10.1088/1742-6596/1128/1/012016

M3 - Conference article

AN - SCOPUS:85058642820

VL - 1128

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012016

T2 - 3rd All-Russian Scientific Conference Thermophysics and Physical Hydrodynamics with the School for Young Scientists, TPH 2018

Y2 - 10 September 2018 through 16 September 2018

ER -