Spectral-element simulations of variable-density turbulent flow in a plane channel

Vladimir Ryzhenkov, Vladislav Ivashchenko, Ricardo Vinuesa, Rustam Mullyadzhanov

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We perform Large-eddy simulations (LES) of the turbulent flow in a channel with isothermal heated walls with the temperature ratio equal to 2. The variable properties of the fluid are accounted for by using the low Mach number approximation. The Reynolds number based on the bulk velocity, half-width of the channel, density and dynamic viscosity near the cold wall is 6800. We study the effect of spatial resolution on the accuracy of Large-eddy simulations with dynamic Smagorinsky model. The very good agreement of LES results is shown even for the coarse meshes which is attributed to the high accuracy of the spectral method.

Original languageEnglish
Article number0041
JournalEPJ Web of Conferences
Volume159
DOIs
Publication statusPublished - 25 Oct 2017

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