Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Passive control of viscous flow via elastic snap-through   We demonstrate the passive control of viscous flow in a channel by using an
elastic arch embedded in the flow. Depending on the fluid flux, the arch may
`snap' between two states --- constricting and unconstricting --- that differ
in hydraulic conductivity by up to an order of magnitude. We use a combination
of experiments at a macroscopic scale and theory to study the constricting and
unconstricting states, and determine the critical flux required to transition
between them. We show that such a device may be precisely tuned for use in a
range of applications, and in particular has potential as a passive
microfluidic fuse to prevent excessive fluxes in rigid-walled channels.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat