Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Off-center gravity induces large-scale flow patterns in spherical
  Rayleigh-B\'enard   Inspired by the hemispherical asymmetry observed in the Earth's inner core,
we perform direct numerical simulations to study the effect of the gravity
center offset in spherical Rayleigh-B\'enard convection. We find that even a
minimal shift of the gravity center has a pronounced influence on the flow
structures. When the gravity center is shifted towards the South, the
co-latitudinal buoyancy component creates an energetic jet on the Northern side
of the inner sphere that is directed towards the outer sphere. As a result, a
large-scale meridional circulation is formed. However, surprisingly, the global
heat flux is not affected by the changes in the large-scale flow organization
induced by the gravity center offset. Our results suggest that the
hemispherical core asymmetry is key to model the flow phenomena in the Earth's
outer core and mantle.

25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys