Geodesic
Numerical modeling of sedimentation of solid particles in a submerged combustion apparatus
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 87 (2024), pp. 88-105 Cet article a éte moissonné depuis la source Math-Net.Ru

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In this paper, the regularities of solid-phase sedimentation within a laboratory submerged combustion apparatus are considered. The study is conducted using the methods of computational fluid dynamics. A gas-liquid-solid three-phase flow is simulated. The gas-liquid and liquid-solid interactions are modeled using the Euler-Euler and Euler-Lagrange approaches, respectively. The thermal regime is considered without the vapor phase. The finite volume method is used to solve this problem. As a result, the trajectories of the solid particles are obtained and their correlation with the streamlines of the fluid is analyzed. The proportion of particles that settled down during the experiment is obtained for different numbers of particles. The conclusion is made on the nonlinear growth of the proportion of settled particles and their percentage on the right side. The velocity of the upward fluid flow is found to be higher than the deposition velocity for the entire considered range of solid particle diameters. It is concluded that the organized solid-phase withdrawal from the apparatus can be provided if the solid phase is extracted near the area of solid particle nucleation.
Keywords: submerged combustion apparatus, numerical modeling, gas-liquid-solid three-phase flow
Mots-clés : sedimentation. 
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V. A. Demin; A. V. Kostyrya. Numerical modeling of sedimentation of solid particles in a submerged combustion apparatus. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 87 (2024), pp. 88-105. http://geodesic.mathdoc.fr/item/VTGU_2024_87_a7/

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