Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current-driven flow instabilities in large-scale liquid metal batteries,
  and how to tame them   The use of liquid metal batteries is considered as one promising option for
electric grid stabilisation. While large versions of such batteries are
preferred in view of the economies of scale, they are susceptible to various
magnetohydrodynamic instabilities which imply a risk of short-circuiting the
battery due to the triggered fluid flow. Here we focus on the current driven
Tayler instability and give critical electrical currents for its onset as well
as numerical estimates for the appearing flow structures and speeds. Scaling
laws for different materials, battery sizes and geometries are found. We
further discuss and compare various means for preventing the instability.

29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ