Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass transfer from a sheared spherical rigid capsule   Solute mass transfer from a spherical fluid-filled rigid capsule subjected to
shear flow is studied numerically, while considering unsteady, continuous and
nonuniform boundary conditions on its surface. Here, the capsule acts as a
reservoir with its initially encapsulated solute concentration decaying over
time. This scenario differs from the classical case study of either constant
concentration or constant mass flux at the surface of the particle. The flow
and the concentration field are computed using fully three-dimensional lattice
Boltzmann simulations, where the fluid-structure two-way coupling is achieved
by the immersed boundary method. Effects of the flow and the boundary
conditions on mass transfer efficacy are quantified by the Sherwood number (the
dimensionless mass transfer coefficient), which is found to increase due to the
combined effects of forced convection and local shear induced by the rotation
of the capsule. Having continuity of both the concentration and the mass flux
on the capsule significantly decreases the Sherwood number as compared to the
case with constant and uniform boundary conditions. All the obtained results
can be applied to heat transfer in case of cooling an initially hot spherical
particle, for which the concentration must be replaced by the temperature and
the Sherwood number by the Nusselt number.

22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga