- fix whitespace in the SIF writer
- Elmer GUI uses only 20 nonlinear iterations, so we should do the same (500 were also not sensible)
- don't restrict nonlinear-Newton iterations to 100, 500 might be necessary for turbulent flow
- update author
- same as #8963 but for initial velocity
- add an example file that demonstrates the influence of the initial velocity
- some fine-tuning for the existing flow example
- complete revision of the constraint.
This is a breaking change, meaning existing constraints won't work.
This is possible because since 2 days ago the whole flow equation did not work at all. Also the existing constraint implementation if buggy and cannot be used to do the Elmer tutorial. Also, the constraint is only used by Elmer and only be the flow equation.
Since nobody complained about the obvious wrong results, we can assume the flow equation was not yet in practical usage (and for FC 0.20 we known that it does not work at all, first with FC 0.20.1).
It is necessary since it must be possible to either input a velocity or an equation. With an equation, a velocity profile can be specified.
- update the flow examples accordingly:
-- simplify them since an initial and and output velocity is not necessary to specify
-- use a formula as input velocity for the non-turbulent example
- as the name implies, it must be possible to set the heat to different bodies
- for this a selection dialog is necessary
- check that heat is not zero
- in practice one wants to apply potentials to faces via this constraint, therefore enable to set a potential by default, also assure that the initial unit is V
- fix message that permittivity object was not handled
- set an expression, otherwise the user gets only "0.000" for the default of 8.8e-12
- use as unit the common "F/m" (this is also more user-friendly than "s^4*A^2 / (m^3*kg)")
- fix a ToDo
- the constraint does not take a references and when trying to set one as user because one thinks this empty property must be set, one gets a recompute error
Prior to a recent commit (or this, if squashed), yield points of a non-linear
material with simple hardening were stored as three different properties. These
changes consolidate them into the new `YieldPoints` property.
String List instead of String should allow for arbitrarily many entries,
theoretically.
Note the defaults previously in `YieldPoint1` an `YieldPoint2` were arbitrary.
Now the list is kept empty by default.
Fixes issue #4720.
* [FEM] add support for 3D recombinations
currently we only support surface recombinations but for some applications 3D recombinations are useful as well
* add support for the recombination algorithms
using a sensible algorithm is important to get useful results, see https://wiki.freecadweb.org/FEM_MeshGmshFromShape#Properties
where I described examples
- Gmsh has since a while 2 new mesh algorithms
- on the other hand the two algorithms ""Frontal Delaunay" and "Frontal Hex" are deprecated and not listed anymore in the docs: https://gmsh.info/doc/texinfo/gmsh.html#index-Mesh_002eAlgorithm3D
and indeed all attempts with these 2 algorithms fail
Fixes LGTM alert
Per the documentation:
```
A 'pass' statement is only necessary when it is the only statement in a block (the list of statements forming part of a compound statement). This is because the purpose of the 'pass' statement is to allow empty blocks where they would otherwise be syntactically invalid. If the block already contains other statements then the 'pass' statement is unnecessary.
```
