Simulation dimension and orientation
Simulation coordinate system
In general, the underlying coordinate system for the simulation is a
three-dimensional cartesian coordinate system (x,y,z).
Dependent on the type of simulation, that means whether a
one-, two- or three-dimensional simulation has to be performed,
the corresponding number of axes has to be selected out of this triplet
of coordinate directions. For these specifications, the keyword
$simulation-dimension together with its specifiers dimension
and orientation have to be used in the input file.
!-----------------------------------------------------!
$simulation-dimension
required !
dimension
integer
required ! possible values
1,2,3
orientation
integer_array
required ! possible values (1
1 1); (1 1 0); (0 1 1)
.... (0 1 0); (0 0 1)
$end_simulation-dimension
required !
!-----------------------------------------------------!
Syntax parameters
!-----------------------------------------------------!
$simulation-dimension
!
dimension = i
!
orientation = l m n
!
$end_simulation-dimension
!
!-----------------------------------------------------!
whereby i={1,2,3} and
l={0,1}
m={0,1}
n={0,1} with
l+m+n=i
Example
!-----------------------------------------------------!
$simulation-dimension
!
dimension = 2
!
orientation = 1 0 1
!
$end_simulation-dimension
!
!-----------------------------------------------------!
This specifies the number of nontrivial dimensions of the device, namely 2
in this example. This two dimensional domain is
spanned by the (x,z) coordinates of the overall three-dimensional
coordinate system.
Specification of the simulation domain dimension and its orientation:
!-----------------------------------------------------!
$simulation-dimension
!
dimension =
2
!
orientation = 1 0 1
!
$end_simulation-dimension
!
!-----------------------------------------------------!
Possible values for dimension are 1, 2, 3; specifying a one-dimensional, a
two-dimensional or a three-dimensional simulation domain,
respectively.
The specifier orientation defines the orientation of the simulation
domain relative to the (x,y,z) coordinate system. A three dimensional array,
containing 0 and/or 1, is expected.
The 1's in this array select the relevant axes.
3-dimensional simulation
dimension = 3
orientation = 1 1 1
2-dimensional simulations
dimension = 2
orientation = 1 1 0 or
1 0 1 or 0 1 1
This means, the simulation is performed in the (x,y)-plane, the (x,z)-plane or
in the (y,z)-plane
1-dimensional simulation
dimension = 1
orientation = 1 0 0 or
0 1 0 or 0 0 1
This means, the simulation is performed along the x direction, the y-direction
or the z-direction.
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