Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The secondary flow in a short aspect ratio circular lid driven cavity at
  small but finite Reynolds number   Regular perturbation solutions are obtained for the Stokes flow field, the
first order effects of inertia on the flow field, and the primary and secondary
pressure fields in the circular lid driven cavity. The physical mechanism that
causes vortex breakdown exists at small Reynolds number; it is a stagnation of
the secondary flow by an adverse pressure gradient. The discontinuity between
the rotating lid and the stationary sidewall has negligible influence on the
flow field provided that the inertial forcing of the secondary flow is not
localized near the boundary discontinuity, and the Reynolds number is small.

13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom