Stationary
A Stationary study step is intended for a stationary or steady-state situation where you can use a stationary solver.
Syntax
model.study(stdname).create(fname, "Stationary");
model.study(stdname).feature(fname).set(pname,value);
Description
Study step.
The following properties are available.
Table 6-141: Properties for Results While Solving
Property
Value
Default
Description
plot
on | off
off
Plot while solving.
plotgroup
String
default
Plot group to use for plot while solving.
probefreq
pout | psteps
pout
Where to update probes.
probes
Vector of strings
 
Probes to use when probesel=manual.
probesel
all | none | manual
all
Probes to compute.
Table 6-142: Properties for Physics and Variables Selection
Property
Value
Default
Description
activate
Vector of strings
 
Choose physics interfaces to solve for. The length of the vector is two times the number of physics interfaces. For example, with two physics interfaces, g and c:
new String[]{"g", "on", "c", "off"}.
disabledcoupling
Vector of strings
 
Disabled coupling features.
disabledphysics
Vector of strings
 
Disabled physics interfaces.
disabledvariables
Vector of strings
 
Disabled variables.
discretization
Vector of strings
 
Select discretizations for physics interfaces. The length of the vector is two times the number of physics interfaces. For example, with two physics interfaces, g and c:
new String[]{"g", "disc1", "c", "disc2"}.
useadvanceddisable
on | off
off
Modify physics tree and variables for study step.
Table 6-143: Properties for Values of Dependent Variables
Property
Value
Default
Description
initmethod
init | sol
init
Method for initial values for variables solved for.
initstudy
String
 
Reference to study or "zero" for zero solution.
manualsolnum
Vector of integers
[1]
Index to solution for initial value for variables solved for.
notlistsolnum
Vector of integers
[1]
Indices to selected solutions for values for variables not solved for.
notmanualsolnum
Vector of integers
[1]
Indices to solutions for values for variables not solved for.
notsolmethod
init | sol
init
Method for values for variables not solved for.
notsolnum
auto | all | first | last | from_list | interp | manual | positive integer
auto
Solution selection for values for variables not solved for.
notstudy
String
 
Reference to study or "zero" for zero solution.
nott
String
 
Specify time for interpolated solution of values for variables not solved for.
solnum
auto | first | last | interp | manual | positive integer
auto
Solution selection of initial values for variables solved for.
storesel
Vector of strings
 
Selections defining which field data to store.
t
String
 
Specify time for interpolated solution of initial value for variables solved for.
useinitsol
on | off
off
User-controlled initial values for variables solved for.
usesol
on | off
off
User-controlled values for variables not solved for.
usestoresel
all | selection
all
Store fields in output.
Table 6-144: Property for Mesh selection
Property
Value
Default
Description
mesh
Vector of strings
 
Select meshes for geometries. The length of the vector is two times the number of geometries. Example value when two geometries geom1 and geom2 are available is: new String[]{"geom1","mesh1","geom2", "mesh2"}.
Table 6-145: properties for Adaptation and Error Estimates
Property
Value
Default
Description
adapgeom
String
 
Adaptation in geometry.
adapsolnum
Array of integers>0
1
Index.
adjppr
on | off
on
Adjoint solution error estimate (for adaptation).
elementspar
Positive scalar
0.5
Element fraction (for adaptation).
elselect
globalmin | worst | elements
globalmin
Method for selecting elements to refine (for adaptation).
errestandadap
none | adaption | errest
none
Perform adaptation or error estimation (or none).
errestim
l2errest | goalerrest
l2errest for adaption; goalerrest for errest
Error estimate.
goalfuncpredef
gfint | gfl2 | gfl1 | gflinf
gfint
Functional: integral (the default), L2 norm, L1 norm, or approximate max norm.
goalfunctype
gfpredef | gfman
gfpredef
Functional type: predefined (the default) or manual.
globalminpar
Positive scalar
1.7
Element growth rate (for adaptation).
l2scale
String
1
Scaling factor.
l2staborder
String
2
Stability estimate derivative order
maxscale
Double
3
Maximum coarsening factor (for adaptation).
maxt
Double
10,000,000
Maximum number of elements (for adaptation).
ngen
Scalar integer
2
Maximum number of refinements (for adaptation).
resorder
String
0
Residual order.
rmethod
regular | longest | meshinit
longest
Refinement method.
savesolsref
true | false
true
Save solution on every refined mesh (for adaptation).
selection
first | last | all | manual
last
Solution selection: the first or last solution, a all solutions, or manual, using weights and solution number indices in adapsolnum. Eigenfrequency studies use all with weights set to 1, which then uses the first solution only.
weights
double[] (positive values)
1.0
Weight for each selected solution (for adaptation).
worstpar
positive scalar
 
Controls refinement if elselect=worst (for adaptation).
Table 6-146: Properties for Study Extensions
Property
Value
Default
Description
constraintgroup
Matrix with "on"/"off" entries
Matrix with only "off"
Constraint group status (active or not). One row per load case.
loadcase
Vector of strings
 
Load cases.
loadgroup
Matrix with "on"/"off" entries
Matrix with only "off"
Load group status (active or not). One row per load case.
loadgroupweight
Real matrix
off
Weight of each load case (as a scalar number). One row per load case.
pcontinuation
String
 
Continuation parameter when pcontinuationmode = manual.
pcontinuationmode
no | last | manual
last
Determines if a continuation sweep should be performed for one of the parameters in pname.
pdistrib
on | off
off
Distribute parametric sweep.
plistarr
Real matrix
 
List of parameter values. One row of values per parameter name.
pname
Vector of strings
 
Parameter names.
preusesol
no | yes | auto
no
Determines how the converged solutions are reused in the parameter sweep.
punit
Vector of strings
 
Parameter units.
sweeptype
filled | sparse
sparse
Sweep type: a filled or a sparse sweep.
useloadcase
on | off
off
Define load cases.
useparam
on | off
off
Auxiliary sweep.