Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A comparative study of immersed boundary method and interpolated
  bounce-back scheme for no-slip boundary treatment in the lattice Boltzmann
  method: Part II, turbulent flows   In the first part of this study, we compared the performances of two
categories of no-slip boundary treatments, i.e., the interpolated bounce-back
schemes and the immersed boundary methods in a series of laminar flow
simulations within the lattice Boltzmann method. In this second part, these
boundary treatments are further compared in the simulations of turbulent flows
with complex geometry to provide a next-level assessment of these schemes. Two
non-trivial turbulent flow problems, a fully developed turbulent pipe flow at a
low Reynolds number, and a decaying homogeneous isotropic turbulent flow laden
with a large number of resolved spherical particles are considered. The major
problem of the immersed boundary method revealed by the present study is its
incapability in computing the local velocity gradients inside the diffused
interface, which can result in significantly underestimated dissipation rate
and viscous diffusion locally near the particle surfaces. Otherwise, both
categories of the no-slip boundary treatments are able to provide accurate
results for most of turbulent statistics in both the carrier and dispersed
phases, provided that sufficient grid resolutions are used.

7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int