- load the results depending on the used cores, not always the multi-thread results
- avoid unnecessary console output - this info is already output in tasks.py
- handle number of cores as int to save in total 2 conversions
- the heat flux in the temperature constraint is not the heat flux from the heatflux constraint. The latter is in W/m² while the first one is W/mesh node
- with this property the linear solver is turned off. As consequence one can this way also disable the execution of an equation without the need to delete the equation object
- also add missing preconditioners
- for fluid material writing the elasticity solver failed with unknown Young Modulus
- fix regression with checking for fluid material. Checking the material of the bodies is not sufficient. One can e.g. have a solid without bodies defined, then it applied to all bodies and there might be a fluid defined for only one body. Checking the body's material would then deliver there is no fluid
- one needs to specify a file when calculating the capacitance matrix
- add electric flux to point filter results
- add missing parameters
- also some sorting
- update tolerances also for existing analyses to fix the bug that users see e.g. "0.001" and not the actual used tolerance
- also a fix for new stress analyses
- also a formatting fix
- output equation-specific values only if this equation is used
- use Elmer's default for BDF order as default for FC too and allow to change it
- don't hardcode to Steady State. Transient must be possible too, this way add parameters to run a transient analysis
- the usually mandatory setting DisplaceMesh was missing leading to imprecise results. Now the calculated faceload is almost the exact same as with CCX
- also add most of the other settings Elmer 9 provides
- also add tooltips
- reverts commit d296732d - the scaling it correct
- there is a bug in Elmer that the heat source is not aware of the scaling
- write the scaling directly to the solver, not to the mesh itself. (make in principal no difference but we are closer to the solver)
- it turned out that despite not mentioned in the manual, ElmerGUI adds the Stabilize setting for all setups
-> bring "Stabilize" back for all equations
(for "Bubbles" it is correct that this is an equation-specific setting)
- enable the disabled options. They work and are according to the Elmer manual. The user is free to use them or not and since they are all False by default, existing analyses won't be affected.
- add two missing settings
- for new equations, enable at least one calculation, otherwise nothing will happen when an inexperienced user uses the default
- the mesh scaling was a hack to work around the fact that FC's mesh is in mm while all input units are in SI. It turned out that this made more problems than it solved because Elmer checks the length unit and makes internal recalculations. So the mesh must not be scaled when send to Elmer (despite the ElmerGrid docs doesn't state this).
forum thread: https://forum.freecadweb.org/viewtopic.php?p=614162#p614162
- this needs proper testing, especially on a non-Windows system
- note that for some tasks multi-threading requires non-standard additional solvers like MUMPS. Ideally the user should be informed about this, depending on the equations he uses. But this should not block this PR, meaning to use multi-threading in general.
- for Elmer and Z88 on Windows several windows pop up (console windows). This is maybe annoying and the user is wondering what is going on, but the main problem is that when you close them, you break the solving process.
Therefore, on Windows only, hide the empty popup windows.
In Elmer there was errors "Viscosity not found" if used mixed solid and flow calculation.
This fix disables Stokes-Navier eruation for Solid objects.
modified: src/Mod/Fem/femsolver/elmer/writer.py
- since we use consistently SI units (as recommended my the Elmer forum), we need to scale the input mesh (we use ElmerGrid that has an option fur this purpose)
- Since the result will be in the scaled mesh, we need to scale it back
With this PR, one gets now correct result independent of
- the used unit scheme
- the simulation type (electrical or thermo-mechanical)
- fixes#6604
as it was, Elmer was almost unusable because most values were input with wrong units to Elmer.
Elmer uses pure SI units
ToDo: fix the still wrong Vacuum permittivity
