<s>
FEATool	B-Algorithm
Multiphysics	I-Algorithm
(	O
"	O
Finite	B-Application
Element	I-Application
Analysis	I-Application
Toolbox	O
for	O
Multiphysics	B-Algorithm
"	O
)	O
is	O
a	O
physics	O
,	O
finite	B-Application
element	I-Application
analysis	I-Application
(	O
FEA	O
)	O
,	O
and	O
PDE	O
simulation	O
toolbox	O
.	O
</s>
<s>
FEATool	B-Algorithm
Multiphysics	I-Algorithm
features	O
the	O
ability	O
to	O
model	O
fully	O
coupled	O
heat	O
transfer	O
,	O
fluid	O
dynamics	O
,	O
chemical	O
engineering	O
,	O
structural	O
mechanics	O
,	O
fluid-structure	O
interaction	O
(	O
FSI	O
)	O
,	O
electromagnetics	O
,	O
as	O
well	O
as	O
user-defined	O
and	O
custom	O
PDE	O
problems	O
in	O
1D	O
,	O
2D	O
(	O
axisymmetry	O
)	O
,	O
or	O
3D	O
,	O
all	O
within	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
or	O
optionally	O
as	O
script	O
files	O
.	O
</s>
<s>
FEATool	B-Algorithm
has	O
been	O
employed	O
and	O
used	O
in	O
academic	O
research	O
,	O
teaching	O
,	O
and	O
industrial	O
engineering	O
simulation	O
contexts	O
.	O
</s>
<s>
FEATool	B-Algorithm
Multiphysics	I-Algorithm
is	O
a	O
fully	O
integrated	O
physics	O
and	O
PDE	O
simulation	O
environment	O
where	O
the	O
modeling	O
process	O
is	O
subdivided	O
into	O
six	O
steps	O
;	O
preprocessing	O
(	O
CAD	B-Application
and	O
geometry	O
modeling	O
)	O
,	O
mesh	B-Architecture
and	I-Architecture
grid	I-Architecture
generation	I-Architecture
,	O
physics	O
and	O
PDE	O
specification	O
,	O
boundary	O
condition	O
specification	O
,	O
solution	B-Application
,	O
and	O
postprocessing	O
and	O
visualization	O
.	O
</s>
<s>
Multiphysics	B-Algorithm
Mode	O
thumb|Geometry	O
generation	O
and	O
CAD	B-Application
import	O
thumb|Automatic	O
mesh	B-Architecture
and	I-Architecture
grid	I-Architecture
generation	I-Architecture
thumb|Subdomain	O
,	O
equation	O
,	O
and	O
coefficient	O
specification	O
4	O
.	O
</s>
<s>
The	O
FEATool	B-Algorithm
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
shown	O
above	O
was	O
designed	O
for	O
ease	O
of	O
use	O
and	O
minimal	O
prerequisite	O
knowledge	O
.	O
</s>
<s>
Specifically	O
,	O
because	O
of	O
the	O
full	O
integration	O
of	O
CAD	B-Application
and	O
simulation	O
tools	O
users	O
can	O
switch	O
between	O
pre-processing	O
,	O
analysis	O
,	O
and	O
post-processing	O
modes	O
to	O
change	O
simulation	O
parameters	O
,	O
modify	O
geometry	O
and	O
meshes	O
,	O
to	O
solution	B-Application
evaluation	O
and	O
visualization	O
.	O
</s>
<s>
In	O
this	O
way	O
FEATool	B-Algorithm
can	O
make	O
up	O
for	O
any	O
performance	O
overhead	O
by	O
saving	O
users	O
time	O
with	O
problem	O
set	O
up	O
and	O
analysis	O
.	O
</s>
<s>
FEATool	B-Algorithm
has	O
introduced	O
a	O
multi-simulation	O
feature	O
whereby	O
interfaces	O
to	O
popular	O
academic	O
and	O
open-source	O
solvers	B-Application
are	O
developed	O
.	O
</s>
<s>
This	O
feature	O
enables	O
these	O
solvers	B-Application
to	O
be	O
used	O
from	O
the	O
FEATool	B-Algorithm
GUI	B-Application
and	O
CLI	O
without	O
detailed	O
knowledge	O
of	O
the	O
syntax	O
or	O
peculiarities	O
of	O
each	O
solver	B-Application
.	O
</s>
<s>
The	O
CFD	O
solver	B-Application
interfaces	O
allows	O
fluid	O
dynamics	O
problems	O
to	O
be	O
solved	O
with	O
the	O
finite	O
volume	O
CFD	O
solvers	B-Application
OpenFOAM	B-Application
and	O
SU2	O
.	O
</s>
<s>
Using	O
the	O
interfaces	O
automatically	O
converts	O
incompressible	O
Navier-Stokes	O
FEATool	B-Algorithm
models	O
to	O
compatible	O
OpenFOAM/SU2	O
mesh	O
,	O
boundary	O
,	O
and	O
control	O
dictionary	O
files	O
,	O
runs	O
simulations	O
,	O
and	O
afterwards	O
imports	O
and	O
interpolates	O
the	O
resulting	O
solutions	O
back	O
into	O
FEATool	B-Algorithm
.	O
</s>
<s>
In	O
this	O
way	O
more	O
advanced	O
,	O
larger	O
,	O
and	O
parallel	O
CFD	O
models	O
,	O
for	O
example	O
including	O
turbulence	O
,	O
can	O
be	O
simulated	O
without	O
leaving	O
the	O
FEATool	B-Algorithm
interface	O
.	O
</s>
<s>
Similar	O
to	O
the	O
OpenFOAM	B-Application
and	O
SU2	O
solver	B-Application
interfaces	O
,	O
FEATool	B-Algorithm
also	O
features	O
a	O
fully	O
integrated	O
interface	O
to	O
the	O
FEniCS	B-Language
general	O
FEM	O
and	O
multiphysics	B-Algorithm
solver	B-Application
.	O
</s>
<s>
Using	O
the	O
FEATool-FEniCS	O
interface	O
,	O
as	O
both	O
codes	O
feature	O
PDE	O
definition	O
languages	O
,	O
multiphysics	B-Algorithm
problems	O
can	O
automatically	O
be	O
translated	O
and	O
converted	O
to	O
FEniCS	B-Language
Python	B-Language
definition	O
files	O
,	O
after	O
which	O
system	O
calls	O
to	O
the	O
FEniCS	B-Language
solver	B-Application
is	O
made	O
,	O
and	O
the	O
resulting	O
solution	B-Application
re-imported	O
.	O
</s>
<s>
GUI	B-Application
operation	O
is	O
recorded	O
as	O
equivalent	O
function	O
calls	O
,	O
and	O
therefore	O
in	O
addition	O
to	O
binary	O
formats	O
,	O
FEATool	B-Algorithm
simulation	O
models	O
can	O
also	O
be	O
saved	O
and	O
exported	O
as	O
fully	O
scriptable	O
and	O
editable	O
MATLAB	B-Language
compatible	O
m-script	O
files	O
.	O
</s>
<s>
The	O
short	O
MATLAB	B-Language
script	O
below	O
illustrates	O
how	O
a	O
complete	O
flow	O
around	O
a	O
cylinder	O
computational	O
fluid	O
dynamics	O
(	O
CFD	O
)	O
benchmark	O
problem	O
can	O
be	O
defined	O
and	O
solved	O
with	O
the	O
FEATool	B-Algorithm
m-script	O
functions	O
(	O
including	O
geometry	O
,	O
grid	B-Architecture
generation	I-Architecture
,	O
problem	O
definition	O
,	O
solving	O
,	O
and	O
postprocessing	O
all	O
in	O
a	O
few	O
lines	O
of	O
code	O
)	O
.	O
</s>
<s>
Similar	O
to	O
the	O
external	O
solver	B-Application
interfaces	O
,	O
FEATool	B-Algorithm
features	O
built-in	O
support	O
for	O
the	O
Gmsh	B-Language
and	O
Triangle	O
mesh	O
generators	O
.	O
</s>
<s>
If	O
requested	O
instead	O
of	O
the	O
built-in	O
mesh	B-Architecture
generation	I-Architecture
algorithm	O
,	O
FEATool	B-Algorithm
will	O
convert	O
and	O
export	O
appropriate	O
Gridgen2D	O
,	O
Gmsh	B-Language
,	O
or	O
Triangle	O
input	O
data	O
files	O
,	O
call	O
the	O
mesh	O
generators	O
through	O
external	O
system	O
calls	O
,	O
and	O
re-import	O
the	O
resulting	O
grids	O
into	O
FEATool	B-Algorithm
.	O
</s>
<s>
Stand-alone	O
operation	O
(	O
without	O
MATLAB	B-Language
)	O
or	O
can	O
be	O
used	O
as	O
a	O
MATLAB	B-Language
toolbox	O
.	O
</s>
<s>
Fully	O
cross	O
platform	O
MATLAB	B-Language
interoperability	O
including	O
other	O
toolboxes	O
.	O
</s>
<s>
28	O
pre-defined	O
equations	O
and	O
multiphysics	B-Algorithm
modes	O
in	O
1D	O
,	O
2D	O
Cartesian	O
and	O
cylindrical	O
coordinates	O
,	O
as	O
well	O
as	O
full	O
3D	O
.	O
</s>
<s>
Mesh	O
and	O
geometry	O
import	O
,	O
export	O
,	O
and	O
conversion	O
between	O
OpenFOAM	B-Application
,	O
SU2	O
,	O
Dolfin/FEniCS	O
XML	O
,	O
GiD	O
,	O
Gmsh	B-Language
,	O
GMV	O
,	O
Triangle	O
(	O
PSLG	O
)	O
,	O
and	O
plain	O
ASCII	B-Protocol
grid	O
formats	O
.	O
</s>
<s>
Online	O
postprocssing	O
and	O
image	O
export	O
with	O
ParaView	B-Language
Glance	O
,	O
Plotly	B-Application
,	O
and	O
social	O
sharing	O
of	O
results	O
.	O
</s>
