Large-eddy simulations of variable-density turbulent jets

V. Ivashchenko, V. Ryzhenkov, R. Mullyadzhanov

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Article number012016
Number of pages7
JournalJournal of Physics: Conference Series
Volume1128
Issue number1
DOIs
Publication statusPublished - 7 Dec 2018
Event3rd All-Russian Scientific Conference Thermophysics and Physical Hydrodynamics with the School for Young Scientists, TPH 2018 - Yalta, Crimea, Ukraine
Duration: 10 Sep 201816 Sep 2018

Keywords

  • jet flow
  • mixing
  • turbulence
  • variable density
  • NUMERICAL-SIMULATION

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