Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On molecular and continuum boundary conditions for a miscible binary
  fluid   We show that molecular dynamics simulations can furnish useful boundary
conditions at a solid surface bounding a two-component fluid. In contrast to
some previous reports, convective-diffusive flow is consistent with continuum
equations down to atomic scales. However, concentration gradients can produce
flow without viscous dissipation that is inconsistent with the commonly used
Navier slip condition. Also, differential wetting of the two components coupled
to a concentration gradient can drive convective flows that could be used to
make nano-pumps or motors.

8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys