Particle Concentration Distribution in a Gas–Droplet Confined Swirling Flow: Euler and Lagrange Approaches

Autor:	Viktor I. Terekhov, Maksim A. Pakhomov
Rok vydání:	2020
Předmět:	010302 applied physics Physics Computer simulation Turbulence Flow (psychology) General Engineering Reynolds stress Mechanics Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics symbols.namesake Phase (matter) 0103 physical sciences Heat transfer Euler's formula symbols Particle
Zdroj:	High Temperature. 58:835-838
ISSN:	1608-3156 0018-151X
Popis:	This paper considers the problem of the numerical simulation of the propagation dynamics of a dispersed admixture and heat transfer in a swirling turbulent gas–droplet flow behind a sudden tube expansion. The gas phase is described by a system of three-dimensional Reynolds-Averaged Navier-Stokes equations with taking into account the effect of particles on the transport processes in the carrier phase. The gas-phase turbulence is calculated with the Reynolds stress transport model with allowance for the effect of the dispersed phase. The Euler and Lagrangian descriptions give qualitatively similar results for small droplet sizes of up to d1 ≤ 30 μm; it is only for the largest particles studied in this paper (with an initial diameter of d1 = 100 μm) did the difference in the calculation results exceed 15%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6677686b253fdf5af5965b6cdbf3e9a3 https://doi.org/10.1134/s0018151x20060140 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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