Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Squeezing multiple soft particles into a constriction: transition to
  clogging   We study numerically how multiple deformable capsules squeeze into a
constriction. This situation is largely encountered in microfluidic chips
designed to manipulate living cells, which are soft entities. We use fully
three-dimensional simulations based on the lattice Boltzmann method to compute
the flow of the suspending fluid, and on the immersed boundary method to
achieve the two-way fluid-structure interaction. The mechanics of the capsule
membrane elasticity is computed with the finite element method. We obtain two
main states: continuous passage of the particles, and their blockage that leads
to clogging the constriction. The transition from one state to another is
dictated by the ratio between the size of the capsules and the constriction
width, and by the capsule membrane deformability. This latter is found to
enhance particle passage through narrower constrictions, where rigid particles
with similar diameter are blocked and lead to clogging.

26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int