Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytical and Computational Studies of Correlations of Hydrodynamic
  Fluctuations in Shear Flow   We study correlations of hydrodynamic fluctuations in shear flow analytically
and also by dissipative particle dynamics~(DPD) simulations. The hydrodynamic
equations are linearized around the macroscopic velocity field and then solved
by a perturbation method in Fourier-transformed space. The autocorrelation
functions~(ACFs) from the analytical method are compared with results obtained
from DPD simulations under the same shear-flow conditions. Upto a moderate
shear rate, various ACFs from the two approaches agree with each other well. At
large shear rates, discrepancies between the two methods are observed, hence
revealing strong additional coupling between different fluctuating variables,
which is not considered in the analytical approach. In addition, the results at
low and moderate shear rates can serve as benchmarks for developing multiscale
algorithms for coupling of heterogeneous solvers, such as a hybrid simulation
of molecular dynamics and fluctuating hydrodynamics solver, where thermal
fluctuations are indispensable.

4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph