Effect of Thermal Convection and Mass Transfer on Particle Motion During Sedimentation: A Numerical Study
Year: 2024
Author: Junjie Hu, Dongke Sun
Advances in Applied Mathematics and Mechanics, Vol. 16 (2024), Iss. 2 : pp. 549–568
Abstract
The sedimentation of a particle cluster with heat and mass transfer is studied with the lattice Boltzmann method. To investigate the effect of thermal convection and mass transfer on the motion of the particle cluster, four cases are studied, namely, without heat and mass transfer, with heat transfer, with mass transfer and with heat and mass transfer. Compared to mass transfer, the effect of thermal convection is more dominant, which affects the motion of the particle cluster significantly. The particle-particle interaction is enforced by thermal convection, and the oscillation of the average settling velocity of the particle cluster is more intense. Besides, with mass transfer between the particles and the fluid, the mass of the particles decreases, the motion of the particles is more sensitive to the fluid flow, the velocity fluctuation of the particle cluster is more intense, the distribution of the particle cluster is more inhomogeneous.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/aamm.OA-2022-0056
Advances in Applied Mathematics and Mechanics, Vol. 16 (2024), Iss. 2 : pp. 549–568
Published online: 2024-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 20
Keywords: Particle sedimentation thermal convection mass transfer lattice Boltzmann method.