Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flow in the Driven Cavity Calculated by the Lattice Boltzmann Method   The lattice Boltzmann method with enhanced collisions and rest particles is
used to calculate the flow in a two-dimensional lid-driven cavity. The
abilitity of this method to compute the velocity and the pressure of an
incompressible fluid in a geometry with Dirichlet and Neumann boundary
conditions is verified by calculating a test-problem where the analytical
solution is known. Different parameter configurations have been tested for
Reynolds numbers from $Re=10$ to $Re=2000$. The vortex structure for a more
generalized lid-driven cavity problem with a non-uniform top speed has been
studied for various acpect ratios.

20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg