Search found 4707 matches

by raback
22 Oct 2023, 00:22
Forum: External tools
Topic: Gmsh format reader for restart etc.
Replies: 4
Views: 6516

Re: Gmsh format reader for restart etc.

Hi Youngmei,

I seem to have missed this question. Probably it comes late, sorry for that. Since March this has worked in parallel trivially. Every partition reads all .msh files. Good enough for moderately parallel cases.

See test case: ParallelBoundaryMapGmsh

-Peter
by raback
22 Oct 2023, 00:01
Forum: Contributed Cases
Topic: Expasion due to Heat
Replies: 22
Views: 576

Re: Expasion due to Heat

Hi, The checksums for linear systems seems equal but the convergence looks quite different. I'm guessing that for some reason the rigid body motions kick in on the other platform. I would suggest fixing the center e.g, Boundary Condition 2 Target Coordinates(1,2) = 0.0 0.0 Displacement 1 = 0.0 Displ...
by raback
21 Oct 2023, 23:55
Forum: ElmerPost
Topic: Exporting data from Elmer to Paraview
Replies: 19
Views: 543

Re: Exporting data from Elmer to Paraview

Hi Roland, For vtu output of Elmer you can say Vtu Part collection = Logical True (if you use the Simulation section to set "Post File = case.vtu" add it there with namespace "vtu: " as prefix). Note that you should give some nice names to the entities to help to identify them in...
by raback
21 Oct 2023, 23:44
Forum: ElmerSolver
Topic: problem simulating electrical field in non-linear insulation material
Replies: 4
Views: 158

Re: problem simulating electrical field in non-linear insulation material

Hi I think the Joule heating term Q is missing. Look at test case "current_heat_control". The "joule heat = true" activates it (this has some control too, but don't use it). As Kevin rightly pointed out you need some steady state iterations. Also set nonlinear system iterations t...
by raback
17 Oct 2023, 00:54
Forum: ElmerSolver
Topic: Mortar BC,contact + heat
Replies: 3
Views: 157

Re: Mortar BC,contact + heat

Hi I think you could get even more physical by getting inspiration from here: elmeruser@elmeruser-VirtualBox:~/elmerfem/fem/src/tests$ grep 'mortar bc coefficient' -ir /home/elmeruser/elmerfem/fem/tests/DisContBoundaryMortarJumpB/discont.sif: Mortar BC Coefficient Temperature = Real 1.0 /home/elmeru...
by raback
17 Oct 2023, 00:44
Forum: ElmerSolver
Topic: Total Current - Surface Integral computation - saveScalars
Replies: 4
Views: 223

Re: Total Current - Surface Integral computation - saveScalars

Hi, And what do you get with: Variable 1 = String "current density e 3" Mask Name 1 = String "Terminal1" Operator 1 = String "boundary int" The tag "Terminal1 = Logical True" being set at the boundary pushing the current in? And make sure that you run SaveScal...
by raback
16 Oct 2023, 14:25
Forum: ElmerSolver
Topic: Total Current - Surface Integral computation - saveScalars
Replies: 4
Views: 223

Re: Total Current - Surface Integral computation - saveScalars

Hi

What are the fields you see in paraview? You have to pick among them. Maybe you have the elemental current density (with suffix 'e') rather than the nodal one you try to use.

-Peter
by raback
16 Oct 2023, 11:08
Forum: ElmerSolver
Topic: Mortar BC,contact + heat
Replies: 3
Views: 157

Re: Mortar BC,contact + heat

Hi There is a old test case "ContactFrictionHeating" that uses soft limiters to find the elastic contact and some conditional contacts for heating. Later in the development we would have used the mortar BCs which are optimal in accuracy. However, I'm dubious whether it is possible to combi...
by raback
12 Oct 2023, 12:23
Forum: General
Topic: Wave Propagation in Bent Waveguide - VectorHelmholtz
Replies: 8
Views: 331

Re: Wave Propagation in Bent Waveguide - VectorHelmholtz

The .msh file does not know anything about units. Hence the information is lost in translation and you end up mm being interpreted as m. -Peter
by raback
11 Oct 2023, 18:10
Forum: ElmerSolver
Topic: Save first time step : [ResultOutputSolver]
Replies: 3
Views: 150

Re: Save first time step : [ResultOutputSolver]

Hi If you just want to check for testing how your vtu output looks like then any solver can take "exec solver = before simulation" or "before timestep". If you have the vtu just defined in Simulation section you can pass on the info as "vtu: exec solver= before timestep"...