TY - JOUR
T1 - Effect of Thermal Convection and Mass Transfer on Particle Motion During Sedimentation: A Numerical Study
AU - Hu , Junjie
AU - Sun , Dongke
JO - Advances in Applied Mathematics and Mechanics
VL - 2
SP - 549
EP - 568
PY - 2024
DA - 2024/01
SN - 16
DO - http://doi.org/10.4208/aamm.OA-2022-0056
UR - https://global-sci.org/intro/article_detail/aamm/22343.html
KW - Particle sedimentation, thermal convection, mass transfer, lattice Boltzmann method.
AB - <p style="text-align: justify;">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.</p>