Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Turbulent momentum transport due to neoclassical flows   Intrinsic toroidal rotation in a tokamak can be driven by turbulent momentum
transport due to neoclassical flow effects breaking a symmetry of turbulence.
In this paper we categorize the contributions due to neoclassical effects to
the turbulent momentum transport, and evaluate each contribution using
gyrokinetic simulations. We find that the relative importance of each
contribution changes with collisionality. For low collisionality, the dominant
contributions come from neoclassical particle and parallel flows. For moderate
collisionality, there are non- negligible contributions due to neoclassical
poloidal electric field and poloidal gradients of density and temperature,
which are not important for low collisionality.

21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat