[Default value: 10^-6 radian.]
Numerous warnings and error messages from the PLAOVL procedure are an indication that this parameter has an inappropriate value.
[Default value: 10^-6 cm.]
[The is default.]
This technique is superior where the charges on several panels have nearly identical effects. This seems to happen in cylindrical structures. The differences are marginal in box-like layouts.
SVD is substantially slower than LU. E.g. for a matrix size of 4000, SVD takes nearly ten times more time than LU. The difference is significant only for structures with several 1000 or more elements.
[The default is LU-INVERSION.]
Largest number of elements produced along either axis of a single primitive.
There is no upper limit but CPU time consumption and memory requirements rise faster than linear with the number of elements in the model. If the minimum exceeds the maximum, then the values will be interchanged.
[Default: 10]
Smallest number of elements produced along either axis of a single primitive.
The smallest value allowed is 1. If the minimum exceeds the maximum, then the values will be interchanged.
[Default: 1]
Instructs neBEM to obtain the geometric and potential data from Garfield, to calculate the influence matrix and to solve the capacitance equation.
[This is default]
Instructs neBEM to obtain the geometric and potential data from Garfield, but to recover the influence matrix and the element charges from files that have been written during an earlier run. The user must ensure that the geometry, influence matrix and charges are coherent. This means in practice that the calculations must be run in the same directory as an earlier run with the NEW-MODEL flag in effect, with identical boundary conditions.
There is no option or command to request storing the model: neBEM always stores the model.
If the inverted influence matrix (capacitance matrix) has been stored, in response to specifying the KEEP-INVERTED-MATRIX option.then it too will be retrieved when re-specifying this option.
[This is not default.]
This matrix is currently needed only for the calculation of weighting fields.
This matrix is large.
The flag must be set both during the initial run that computes and writes the element charges, and during the runs in which these charges are retrieved by means of the REUSE-MODEL option.
[By default, the inverted matrix is neither stored nor retrieved.]
neBEM currently does not have explicit periodic Green's functions for periodic configurations. It approximates these with the sum of a series of periodic copies of the non-periodic Green's function. The series runs from \<CODE\>-copies\</CODE\> to \<CODE\>copies\</CODE\>.
Since the Green's function are expensive to calculate, it is advisable to choose a low number of copies. In 3 dimensions, the series converges rapidly.
neBEM allows this parameter to be set individually for each primitive, but the Garfield interface stores only one value, common to all primitives.
The number of periodic copies can be set indivually along each axis, or collectively for all 3 axes.
[Default: 5, which corresponds to having in all 11 copies.]
This parameter currently only leads to reduction of the overall size of sharp-angled triangles, it does not yet stop them from being created.
The minimum quality must be larger than 1.
[Default setting: 150.]
This parameter has currently not effect. A similar effect can be obtained by setting discretisation sizes on the solids and also by using the TARGET-ELEMENT-SIZE, MINIMUM-ELEMENTS and MAXIMUM-ELEMENTS parameters.
[Default setting: 0.001]
Target linear size of the elements, measured along their edges, produced by neBEM's discretisation process. The element sizes are if needed increased or decreased to respect the MINIMUM-ELEMENTS and MAXIMUM-ELEMENTS parameters.
If specified before the SOLIDS command is issued, then the value will be used as default for all solids that are entered. The value can be overridden on any individual solid.
If specified after the SOLIDS command, then the value applies only to those faces for which the discretisation length has been is specified as "automatic".
[Default: 50 micron.]
neBEM currently does not have explicit periodic Green's functions for periodic configurations. It approximates these with the sum of a series of periodic copies of the non-periodic Green's function. The series runs from \<CODE\>-copies\</CODE\> to \<CODE\>copies\</CODE\>.
Since the Green's function are expensive to calculate, it is advisable to choose a low number of copies. In 3 dimensions, the series converges rapidly.
neBEM allows this parameter to be set individually for each primitive, but the Garfield interface stores only one value, common to all primitives.
The number of periodic copies can be set indivually along each axis, or collectively for all 3 axes.
[Default: 5, which corresponds to having in all 11 copies.]
neBEM currently does not have explicit periodic Green's functions for periodic configurations. It approximates these with the sum of a series of periodic copies of the non-periodic Green's function. The series runs from \<CODE\>-copies\</CODE\> to \<CODE\>copies\</CODE\>.
Since the Green's function are expensive to calculate, it is advisable to choose a low number of copies. In 3 dimensions, the series converges rapidly.
neBEM allows this parameter to be set individually for each primitive, but the Garfield interface stores only one value, common to all primitives.
The number of periodic copies can be set indivually along each axis, or collectively for all 3 axes.
[Default: 5, which corresponds to having in all 11 copies.]
neBEM currently does not have explicit periodic Green's functions for periodic configurations. It approximates these with the sum of a series of periodic copies of the non-periodic Green's function. The series runs from \<CODE\>-copies\</CODE\> to \<CODE\>copies\</CODE\>.
Since the Green's function are expensive to calculate, it is advisable to choose a low number of copies. In 3 dimensions, the series converges rapidly.
neBEM allows this parameter to be set individually for each primitive, but the Garfield interface stores only one value, common to all primitives.
The number of periodic copies can be set indivually along each axis, or collectively for all 3 axes.
[Default: 5, which corresponds to having in all 11 copies.]
Formatted on 21/01/18 at 16:55.