Commit Graph

523 Commits

Author SHA1 Message Date
Uwe
e4e34affac [FEM] Elmer: resale the mesh using Elmer
- according to Peter from the Elmer team, we can use Elmer for both, scaling in and scaling back just for consistency
2022-08-07 05:32:54 +02:00
Uwe
42b3b8daed [FEM] [skip CI] fix a typo for nonlinear solving 2022-08-07 05:24:37 +02:00
Uwe
dcdbf6dcaa [Fem] Elmer: change default nonlinear tolerance
- ElmerGUI uses 1e-7 as default, so we should do too
2022-08-07 04:33:21 +02:00
Uwe
3d0def93cd [FEM] Elmer: fix default for heat
- revert change from comm it commit f3933016 - "None" is the correct default. (I mixed this up with Navier-Stokes)
2022-08-07 02:45:08 +02:00
Bernd Hahnebach
a7c24ccd49 FEM: Python pep8 code formatting 2022-08-07 01:39:52 +02:00
Uwe
81836aae11 [FEM] Elmer: polishing for nonlinear system
- add tooltips
- relaxation factor is usually not below 0.1 thus no expression is necessary
- sorting
2022-08-07 01:21:42 +02:00
Uwe
84db9d4baa [FEM] Elmer: fixes for electrostatics
- one needs to specify a file when calculating the capacitance matrix
- add electric flux to point filter results
- add missing parameters
- also some sorting
2022-08-07 01:11:07 +02:00
Uwe
ef4366a20d [FEM] Elmer: add missing parameters for Navier-Stokes solver 2022-08-06 23:36:40 +02:00
Bernd Hahnebach
3369aa4eca FEM: Python pep8 code formatting 2022-08-06 22:29:12 +02:00
Uwe
f39330163d [FEM] Elmer: code improvements
- don't redefine lists twice
- also fix mistake for heat - the default is computed convection
2022-08-06 22:20:44 +02:00
Uwe
b5faecea99 [FEM] Elmer: output the equation-specific settings for Navier-Stokes 2022-08-06 22:01:25 +02:00
Uwe
7600855f26 [Fem] Elmer: output the equation-specific settings
- equation-specific things were not set at all. This is the first step for the heat and Stress equation
2022-08-06 21:26:23 +02:00
Bernd Hahnebach
09c1b5a274 FEM: Python pep8 code formatting 2022-08-06 20:16:10 +02:00
Uwe
2b375f2dc6 [Fem] Elmer: writer: remove unused variable 2022-08-06 20:05:23 +02:00
Uwe
b621e6c253 [Fem] Elmer: update tolerances
- 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
2022-08-06 20:01:24 +02:00
Uwe
29197f503d [FEM] Elmer: next step to fix eigenfrequency analysis
- add missing parameters to perform modal analyses
- set mandatory complex statement
2022-08-06 18:27:51 +02:00
Uwe
b5a34817db [FEM] Elmer: fix mistake with transient solving
- there is proper info, just in another Elmer manual. This unveiled my mistake - the timestepping parameters are a list
2022-08-06 16:01:55 +02:00
Bernd Hahnebach
43dcbe4a31 FEM: Python pep8 code formatting 2022-08-06 13:33:01 +02:00
Uwe
3818534cd6 [FEM] Elmer: fixes for the simulation parameters
- 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
2022-08-06 04:32:18 +02:00
Uwe
cd03ef3d78 [Fem] Elmer: don't output unused parameters
- many of the new parameters don't have to be output if they are not used

- also some sorting
2022-08-06 04:06:10 +02:00
Uwe
b20060bcd0 [FEM] Elmer: add missing parameters for flux equation
- also add tooltips
2022-08-05 05:09:54 +02:00
Uwe
96ba47e80f [Fem] Elmer: add missing settings for the stress solver
- 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
2022-08-05 04:17:39 +02:00
Uwe
18d1941a79 [FEM] Elmer: push mesh scaled to Elmer
- 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)
2022-08-05 02:13:04 +02:00
Uwe
357989c552 [FEM] fix enable editing for all solvers
- currently for Z88 nothing happens when clicking the Edit button in the solver task dialog. The reason is that opening *.txt files was never implemented
- also do this for Elmer
- for Z88 we need to open several file for a proper editing because the solver info is distributed over these files
2022-08-04 04:19:55 +02:00
Uwe
0549a47b09 [FEM] Elmer: more work on Stabilize
- 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)
2022-08-04 03:57:46 +02:00
Uwe
82f41ce220 [FEM] Elmer: setup new pipelines like we do for CCX
and manually new created ones
2022-08-04 03:25:26 +02:00
Uwe
d455ba378e [FEM] Elmer: use different default linear solver
- BiCGStabl is as robust as BiCGStab but in all tested cases it converges faster
2022-08-04 03:24:03 +02:00
Uwe
ba858175fe [FEM] Elmer: use direct solving as default for stresses
- direct solving is sometimes even 10 times faster (as fast as CCX) and as accurate as CCX
2022-08-04 03:22:07 +02:00
Uwe
1f89f6eca7 [FEM] Elmer: fix solver stabilize settings
- according to https://www.nic.funet.fi/index/elmer/doc/ElmerModelsManual.pdf
the stabilization methods are equation-specific and only available for some solvers
This commits changes these settings according to the manual
2022-08-03 02:32:01 +02:00
Uwe
30d9efe691 [FEM] Elmer: Flux: add missing settings
- 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
2022-08-03 01:50:12 +02:00
Uwe
d296732de6 [FEM] Elmer: don't push mesh scaled to Elmer
- 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
2022-08-01 03:58:09 +02:00
Uwe
e07c696b1e [FEM] Elmer: set sensible defaults for elasticity equation
- for BiCGstabl the minimal degree is 2, but 3 is recommended
- when adding the equation, it should do something, therefore enable the calculation of the principal stresses (as it was, nothing was calculated except of the displacement)
2022-08-01 03:42:57 +02:00
Bernd Hahnebach
ffd51eda61 FEM: python code formatting 2022-07-31 23:47:45 +02:00
Uwe
00f1360773 [FEM] Elmer: fix small number property handling
- use an expression as discussed: https://forum.freecadweb.org/viewtopic.php?p=613897#p613897
2022-07-31 05:19:45 +02:00
Uwe
a6fbd74cae [FEM] add missing eigenfrequcy calculation for Elmer
- while for CCX we output the eigenfrequency, for Elmer the user had to perform the calculation of a sqrt of the complex result.
This is inconvenient and error-prone and also requires the knowledge where the result is output by Elmer and in what format. (cast me more than an hour to find this out)
Therefore perform the calculation for the user and output the result.
2022-07-31 02:31:26 +02:00
Uwe
548cab1fd8 [FEM] Elmer: add missing direct variant MUMPS
- also use capitalized wording to Umfpack as Elmer does
2022-07-30 14:40:10 +02:00
Uwe
bc69cfd19b [FEM] Elmer: a fix for keywords
- according to the Elmer solver manual, check keywords have to be quoted
2022-07-27 01:48:10 +02:00
Uwe
c4b8983a27 [FEM] Elmer writer: fix errors on missing material properties
- we must in this case raise an error and stop the writer script
2022-07-26 03:37:55 +02:00
Uwe
12440921bb [FEM] Elmer: fix python error when solver failed
we must then stop the execution of the script
2022-07-25 02:54:12 +02:00
Uwe
da104f63b7 [FEM] fix CCX (new framework) binary handling
- when the binary was not found, the function called the non-existing binary
- also push error message to the status info so that user gets feedback also when report view console is not shown
2022-07-17 01:28:54 +02:00
Uwe
3a993abfb4 [FEM] fix Z88 binary handling
- when the binary was not found, the function called the non-existing binary
- also push error message for Elmer and Z88 to the status info so that user gets feedback also when report view console is not shown
- uniform wording to 'binary'
- avoid unnecessary console output
2022-07-17 01:18:21 +02:00
Uwe
4a5bf895ed [FEM] [skip CI] inform user about used CPU cores for Elmer
Since the number of used cores can for Elmer have the impact that a solver run converges or not, output this info prominently
2022-07-16 19:46:46 +02:00
Uwe
3542c73966 [FEM] [skip CI] tell user when Elmer write succeeded
At the moment the user gets no feedback, while for Z88 and CCX he gets a result
2022-07-16 19:41:43 +02:00
Uwe
2782d09dee [FEM] [skip CI] fix a typo 2022-07-16 19:21:25 +02:00
Uwe
32ac6fa9fd [FEM] [skip CI] fix a string 2022-07-16 18:54:11 +02:00
Uwe
10301e7f75 [FEM] [skip CI] fix a typo 2022-07-16 16:01:38 +02:00
Uwe
6625281986 [FEM] enable to run Elmer multi-threaded
- 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.
2022-07-16 14:59:25 +02:00
Marshal Horn
cf27c91a2e Replaced python2 usage of next()
iterator.next() is deprecated in python3.
next(iterator) is the direct replacement.
In some cases a for() loop makes more sense
2022-07-14 01:28:10 +02:00
Bernd Hahnebach
edcd16afaf FEM: Python code formatting 2022-07-13 12:04:52 +02:00
Uwe
c8064ed059 [FEM] fix solver console bugs
- 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.
2022-07-13 02:51:31 +02:00