Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electric-field-induced turbulent energy cascade in an oil-in-oil
  emulsion   We observe electro-hydrodynamically driven turbulent flows at low Reynolds
numbers in a two-fluid emulsion consisting of micron-scale droplets. In the
presence of electric fields, the droplets produce interacting hydrodynamic
flows which result in a dynamical organization at a spatial scale much larger
than the size of the individual droplets. We characterize the dynamics
associated with these structures by both video imaging and a simultaneous, in
situ, measurement of the time variation of the bulk Reynolds stress with a
rheometer. The results display scale invariance in the energy spectra in both
space and time.

34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn