Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microscopic and Macroscopic Rayleigh-Benard Flows : Continuum and
  Particle Simulations, Turbulence, Fluctuations, Time Reversibility, and
  Lyapunov Instability   We discuss the irreversibility, nonlocality, and fluctuations, as well as the
Lyapunov and hydrodynamic instabilities characterizing atomistic,
smooth-particle, and finite-difference solutions of the two-dimensional
Rayleigh-B\'enard problem. To speed up the numerical analysis we control the
time-dependence of the Rayleigh number so as to include many distinct flow
morphologies in a single simulation. The relatively simple nature of these
computational algorithms and the richness of the results they can yield make
such studies and their interpretation particularly well suited to
graduate-level research.

25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom