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Backofen, Rainer
amdis
Commits
9e2c500d
Commit
9e2c500d
authored
Jul 30, 2012
by
Praetorius, Simon
Browse files
navierStokes dome
parent
83178aca
Changes
3
Hide whitespace changes
Inline
Side-by-side
demo/src/navierStokes.h
View file @
9e2c500d
...
...
@@ -39,7 +39,39 @@ public:
for
(
size_t
i
=
0
;
i
<
vertices
.
size
()
-
1
;
i
++
)
result
=
std
::
min
(
result
,
meshconv
::
distance_point_line_2d
(
x
.
begin
(),
vertices
[
i
].
begin
(),
vertices
[
i
+
1
].
begin
()));
return
result
*
(
meshconv
::
point_in_polygon
(
x
.
begin
(),
vertices
)
?
-
1.0
:
1.0
);
};
}
void
refine
(
int
np
)
{
std
::
vector
<
WorldVector
<
double
>
>
newVertices
;
for
(
size_t
i
=
0
;
i
<
vertices
.
size
()
-
1
;
i
++
)
{
for
(
size_t
j
=
0
;
j
<
np
-
1
;
j
++
)
{
double
lambda
=
static_cast
<
double
>
(
j
)
/
static_cast
<
double
>
(
np
-
1.0
);
WorldVector
<
double
>
p
=
lambda
*
vertices
[
i
+
1
]
+
(
1.0
-
lambda
)
*
vertices
[
i
];
newVertices
.
push_back
(
p
);
}
}
swap
(
vertices
,
newVertices
);
}
void
move
(
const
DOFVector
<
WorldVector
<
double
>
>*
velocity
)
{
for
(
size_t
i
=
0
;
i
<
vertices
.
size
()
-
1
;
i
++
)
{
WorldVector
<
double
>
shift
=
evalAtPoint
(
*
velocity
,
vertices
[
i
]);
vertices
[
i
]
+=
shift
;
}
vertices
[
vertices
.
size
()
-
1
]
=
vertices
[
0
];
}
void
move
(
AbstractFunction
<
WorldVector
<
double
>
,
WorldVector
<
double
>
>*
velocity
)
{
for
(
size_t
i
=
0
;
i
<
vertices
.
size
()
-
1
;
i
++
)
{
WorldVector
<
double
>
shift
=
(
*
velocity
)(
vertices
[
i
]);
vertices
[
i
]
+=
shift
;
}
vertices
[
vertices
.
size
()
-
1
]
=
vertices
[
0
];
}
private:
std
::
vector
<
WorldVector
<
double
>
>
vertices
;
...
...
demo/src/navierStokes_diffuseDomain.cc
0 → 100644
View file @
9e2c500d
#include
"AMDiS.h"
#include
"NavierStokesPhase_TaylorHood.h"
#include
"navierStokes.h"
// #include "time/ExtendedRosenbrockAdaptInstationary.h"
#include
"Refinement.h"
#include
"MeshFunction_Level.h"
#include
"PhaseFieldConvert.h"
#include
"boost/date_time/posix_time/posix_time.hpp"
using
namespace
AMDiS
;
using
namespace
boost
::
posix_time
;
struct
BeamDisplacement1d
:
AbstractFunction
<
double
,
double
>
{
BeamDisplacement1d
(
double
P_
,
double
L_
,
double
EI_
,
double
*
time_
,
double
tau_
)
:
P
(
P_
),
L
(
L_
),
EI
(
EI_
),
time
(
time_
),
tau
(
tau_
)
{}
double
operator
()(
const
double
&
x
)
const
{
return
(
*
time
<
DBL_TOL
?
0.0
:
(
sin
(
*
time
)
-
sin
(
*
time
-
tau
))
*
P
*
sqr
(
x
)
*
(
3.0
*
L
-
x
)
/
(
6.0
*
EI
));
}
private:
double
P
;
double
L
;
double
EI
;
double
*
time
;
double
tau
;
};
struct
BeamDisplacement
:
AbstractFunction
<
WorldVector
<
double
>
,
WorldVector
<
double
>
>
{
BeamDisplacement
(
double
P
,
double
L
,
double
EI
,
double
*
time
,
double
tau
,
WorldVector
<
double
>
fixedPoint_
)
:
fct
(
new
BeamDisplacement1d
(
P
,
L
,
EI
,
time
,
tau
)),
fixedPoint
(
fixedPoint_
)
{}
WorldVector
<
double
>
operator
()(
const
WorldVector
<
double
>&
x
)
const
{
WorldVector
<
double
>
displacement
;
displacement
[
0
]
=
0.0
;
displacement
[
1
]
=
(
x
[
0
]
>=
fixedPoint
[
0
]
?
(
*
fct
)(
x
[
0
]
-
fixedPoint
[
0
])
:
0.0
);
return
displacement
;
}
private:
AbstractFunction
<
double
,
double
>*
fct
;
WorldVector
<
double
>
fixedPoint
;
};
class
NS_Channel
:
public
NavierStokesPhase_TaylorHood
{
public:
typedef
NavierStokesPhase_TaylorHood
super
;
public:
NS_Channel
(
std
::
string
name_
)
:
super
(
name_
)
{}
~
NS_Channel
()
{
delete
phaseField
;
}
void
initData
()
{
FUNCNAME
(
"NS_Channel::initData()"
);
super
::
initData
();
phaseField
=
new
DOFVector
<
double
>
(
getFeSpace
(
0
),
"phaseField"
);
phaseField
->
set
(
1.0
);
super
::
setPhase
(
phaseField
);
}
void
solveInitialProblem
(
AdaptInfo
*
adaptInfo
)
{
FUNCNAME
(
"NS_Channel::solveInitialProblem()"
);
super
::
solveInitialProblem
(
adaptInfo
);
size_t
nVertices
=
0
;
WorldVector
<
double
>
x
;
Parameters
::
get
(
"obstacle->num vertices"
,
nVertices
);
std
::
vector
<
WorldVector
<
double
>
>
v
(
nVertices
,
x
);
for
(
size_t
i
=
0
;
i
<
nVertices
;
i
++
)
Parameters
::
get
(
"obstacle->vertex["
+
boost
::
lexical_cast
<
std
::
string
>
(
i
)
+
"]"
,
v
[
i
]);
v
.
push_back
(
v
[
0
]);
obstacle
=
new
Polygon
(
v
);
refFunction
=
new
SignedDistRefinement
(
getMesh
());
refinement
=
new
RefinementLevelCoords2
(
getFeSpace
(),
refFunction
,
obstacle
);
// initial refinement
refinement
->
refine
(
10
);
phaseField
->
interpol
(
new
SignedDistFctToPhaseField
(
getEpsilon
(),
obstacle
,
-
3.0
));
double
P
=
0.1
,
L
=
2.0
,
EI
=
1.0
;
WorldVector
<
double
>
fixedPoint
;
fixedPoint
[
0
]
=
2.5
;
fixedPoint
[
1
]
=
2.0
;
Parameters
::
get
(
"obstacle->P"
,
P
);
Parameters
::
get
(
"obstacle->L"
,
L
);
Parameters
::
get
(
"obstacle->EI"
,
EI
);
Parameters
::
get
(
"obstacle->fixed point"
,
fixedPoint
);
beamDisplacement
=
new
BeamDisplacement
(
P
,
L
,
EI
,
adaptInfo
->
getTimePtr
(),
adaptInfo
->
getTimestep
(),
fixedPoint
);
obstacle
->
refine
(
10
);
}
protected:
void
fillBoundaryConditions
()
{
FUNCNAME
(
"NS_Channel::fillBoundaryConditions()"
);
AbstractFunction
<
double
,
WorldVector
<
double
>
>
*
zero
=
new
AMDiS
::
Const
<
double
,
WorldVector
<
double
>
>
(
0.0
);
size_t
dow
=
Global
::
getGeo
(
WORLD
);
WorldVector
<
double
>
nullVec
;
nullVec
.
set
(
0.0
);
AbstractFunction
<
WorldVector
<
double
>
,
WorldVector
<
double
>
>
*
zeroVec
=
new
AMDiS
::
Const
<
WorldVector
<
double
>
,
WorldVector
<
double
>
>
(
nullVec
);
super
::
setBcFct
(
zeroVec
);
super
::
fillBoundaryConditions
();
// +------ 5 ------+
// | |
// 2 # <--1 3
// | |
// +------ 4 ------+
/// at rigid wall: no-slip boundary condition
for
(
size_t
i
=
0
;
i
<
dow
;
i
++
)
{
getProblem
(
0
)
->
addDirichletBC
(
4
,
i
,
i
,
zero
);
getProblem
(
0
)
->
addDirichletBC
(
5
,
i
,
i
,
zero
);
}
/// dirichlet bc for pressure at one DOF
// getProblem(0)->addSingularDirichletBC(0, dow, dow, *zero);
double
H
=
4.1
;
double
Um
=
1.5
;
Parameters
::
get
(
"mesh->H"
,
H
);
Parameters
::
get
(
"ns->Um"
,
Um
);
/// at left wall: prescribed velocity
getProblem
(
0
)
->
addDirichletBC
(
2
,
0
,
0
,
new
InflowBC
(
H
,
Um
));
getProblem
(
0
)
->
addDirichletBC
(
2
,
1
,
1
,
zero
);
}
void
initTimestep
(
AdaptInfo
*
adaptInfo
)
{
super
::
initTimestep
(
adaptInfo
);
obstacle
->
move
(
beamDisplacement
);
refinement
->
refine
(
5
);
phaseField
->
interpol
(
new
SignedDistFctToPhaseField
(
getEpsilon
(),
obstacle
,
-
3.0
));
}
private:
DOFVector
<
double
>*
phaseField
;
AbstractFunction
<
WorldVector
<
double
>
,
WorldVector
<
double
>
>*
beamDisplacement
;
Polygon
*
obstacle
;
SignedDistRefinement
*
refFunction
;
RefinementLevelCoords2
*
refinement
;
};
int
main
(
int
argc
,
char
**
argv
)
{
FUNCNAME
(
"main"
);
AMDiS
::
init
(
argc
,
argv
);
NS_Channel
nsProb
(
"ns"
);
nsProb
.
initialize
(
INIT_ALL
|
INIT_EXACT_SOLUTION
);
// Adapt-Infos
AdaptInfo
adaptInfo
(
"adapt"
,
nsProb
.
getNumComponents
());
// adaption loop - solve ch-prob and ns-prob
AdaptInstationary
adaptInstat
(
"adapt"
,
nsProb
,
adaptInfo
,
nsProb
,
adaptInfo
);
// ExtendedRosenbrockAdaptInstationary<NS_Channel> adaptInstat("adapt", nsProb, adaptInfo, nsProb, adaptInfo);
// scale Mesh
WorldVector
<
double
>
scale
;
scale
[
0
]
=
25.0
;
scale
[
1
]
=
4.1
;
Helpers
::
scaleMesh
(
nsProb
.
getMesh
(),
scale
);
ptime
start_time
=
microsec_clock
::
local_time
();
nsProb
.
initTimeInterface
();
int
error_code
=
adaptInstat
.
adapt
();
time_duration
td
=
microsec_clock
::
local_time
()
-
start_time
;
MSG
(
"elapsed time= %d sec
\n
"
,
td
.
total_seconds
());
AMDiS
::
finalize
();
return
error_code
;
};
demo/src/pfc.cc
View file @
9e2c500d
...
...
@@ -44,17 +44,22 @@ struct PFC_Demo : public PhaseFieldCrystal
// random data
prob
->
getSolution
()
->
getDOFVector
(
0
)
->
interpol
(
new
RandomValues
(
density
,
amplitude
));
std
::
cout
<<
"Number of degrees of freedom: "
<<
prob
->
getSolution
()
->
getDOFVector
(
0
)
->
getUsedSize
()
<<
std
::
endl
;
}
// add periodic boundary condition on all boundaries
void
fillBoundaryConditions
()
{
for
(
size_t
i
=
0
;
i
<
prob
->
getNumComponents
();
i
++
)
{
for
(
size_t
j
=
0
;
j
<
prob
->
getNumComponents
();
j
++
)
{
prob
->
addPeriodicBC
(
-
1
,
i
,
j
);
prob
->
addPeriodicBC
(
-
2
,
i
,
j
);
}
}
//
for (size_t i = 0; i < prob->getNumComponents(); i++) {
//
for (size_t j = 0; j < prob->getNumComponents(); j++) {
//
prob->addPeriodicBC(-1, i, j);
//
prob->addPeriodicBC(-2, i, j);
//
}
//
}
}
};
...
...
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