Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A case of strong non linearity: intermittency in highly turbulent flows   It has long been suspected that flows of incompressible fluids at large or
infinite Reynolds number (namely at small or zero viscosity) may present finite
time singularities. We review briefly the theoretical situation on this point.
We discuss the effect of a small viscosity on the self-similar solution of the
Euler equations for inviscid fluids. Then we show that single point records of
velocity fluctuations in the Modane wind tunnel display correlations between
large velocities and large accelerations in full agreement with scaling laws
derived from Leray's equations (1934) for self-similar singular solutions of
the fluid equations. Conversely those experimental velocity-acceleration
correlations are contradictory to the Kolmogorov scaling laws.

34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th