<s>
A	O
CFD-DEM	B-Application
model	I-Application
is	O
suitable	O
for	O
the	O
modeling	O
or	O
simulation	O
of	O
fluid-solids	O
or	O
fluid-particles	O
systems	O
.	O
</s>
<s>
In	O
a	O
typical	O
CFD-DEM	B-Application
model	I-Application
,	O
the	O
phase	O
motion	O
of	O
discrete	O
solids	O
or	O
particles	O
is	O
obtained	O
by	O
the	O
Discrete	B-Algorithm
Element	I-Algorithm
Method	I-Algorithm
(	O
DEM	O
)	O
which	O
applies	O
Newton	O
's	O
laws	O
of	O
motion	O
to	O
every	O
particle	O
and	O
the	O
flow	O
of	O
continuum	O
fluid	O
is	O
described	O
by	O
the	O
local	O
averaged	O
Navier	O
–	O
Stokes	O
equations	O
that	O
can	O
be	O
solved	O
by	O
the	O
traditional	O
Computational	O
Fluid	O
Dynamics	O
(	O
CFD	O
)	O
.	O
</s>
<s>
OpenMP	O
has	O
been	O
shown	O
to	O
be	O
more	O
efficient	O
in	O
performing	O
coupled	O
CFD-DEM	O
calculations	O
in	O
parallel	O
framework	O
as	O
compared	O
to	O
MPI	B-Application
by	O
Amritkar	O
et	O
al	O
.	O
</s>
