Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A framework for the evaluation of turbulence closures used in mesoscale
  ocean large-eddy simulations   We present a methodology to determine the best turbulence closure for an
eddy-permitting ocean model through measurement of the error-landscape of the
closure's subgrid spectral transfers and flux. We apply this method to 6
different closures for forced-dissipative simulations of the barotropic
vorticity equation on a f-plane (2D Navier-Stokes equation). Using a
high-resolution benchmark, we compare each closure's model of energy and
enstrophy transfer to the actual transfer observed in the benchmark run. The
error-landscape norms enable us to both make objective comparisons between the
closures and to optimize each closure's free parameter for a fair comparison.
The hyper-viscous closure most closely reproduces the enstrophy cascade,
especially at larger scales due to the concentration of its dissipative effects
to the very smallest scales. The viscous and Leith closures perform nearly as
well, especially at smaller scales where all three models were dissipative. The
Smagorinsky closure dissipates enstrophy at the wrong scales. The anticipated
potential vorticity closure was the only model to reproduce the upscale
transfer of kinetic energy from the unresolved scales, but would require
high-order Laplacian corrections in order to concentrate dissipation at the
smallest scales. The Lagrangian-averaged alpha-model closure did not perform
successfully for forced 2D isotropic Navier-Stokes: small-scale filamentation
is only slightly reduced by the model while small-scale roll-up is prevented.
Together, this reduces the effects of diffusion.

16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
2
The categories of this paper are: math
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph