Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-sustained lift and low friction via soft lubrication   Relative motion between soft wet solids arises in a number of applications in
natural and artificial settings, and invariably couples elastic deformation and
fluid flow. We explore this in a minimal setting by considering a
fluid-immersed negatively-buoyant cylinder moving along a soft inclined wall.
Our experiments show that there is an emergent robust steady-state sliding
regime of the cylinder with an effective friction that is significantly reduced
relative to that of rigid fluid-lubricated contacts. A simple scaling approach
that couples the cylinder-induced flow to substrate deformation allows us to
explain the emergence of an elastohydrodynamic lift that underlies the
self-sustained lubricated motion of the cylinder, consistent with recent
theoretical predictions. Our results suggest an explanation for a range of
effects such as reduced wear in animal joints and long-runout landslides, and
can be couched as a design principle for low-friction interfaces.

36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio