Search found 2237 matches

by kevinarden
22 Feb 2024, 12:24
Forum: ElmerSolver
Topic: lagrangian element selection
Replies: 7
Views: 159

Re: lagrangian element selection

I don't think there is a physical or mathematical reason for the elements to be discontinuous at the interface. I believe their reason is the mesh refinement is much finer in the plasma than it is in the dielectric. They likely did this to save total number of DOFs to solve. However it is not a requ...
by kevinarden
21 Feb 2024, 15:46
Forum: ElmerSolver
Topic: Elmer-elmag example throws error
Replies: 21
Views: 336

Re: Elmer-elmag example throws error

Peter's fix works, that is the best approach.
by kevinarden
21 Feb 2024, 13:18
Forum: ElmerSolver
Topic: Elmer-elmag example throws error
Replies: 21
Views: 336

Re: Elmer-elmag example throws error

Same result NAME="Linux Mint" VERSION="21.3 (Virginia)" VERSION_CODENAME=virginia UBUNTU_CODENAME=jammy I noticed MagnetoDynamicsCalcFields: Solving for field: magnetic flux density[ magnetic flux density:3 ] ERROR:: SolveLinearSystem: Give "Linear System Solver", e.g. ...
by kevinarden
20 Feb 2024, 18:04
Forum: ElmerSolver
Topic: SIGSEGV Fault in parallel, but not serial
Replies: 7
Views: 127

Re: SIGSEGV Fault in parallel, but not serial

It is a difficult problem to diagnose. Not every problem can be parallel using mesh partition alone. The Elmer strategy appears to be to partition the mesh and each process acts on each mesh partition. Some codes parallel the solution equations, but each process has full access to the mesh. It may b...
by kevinarden
20 Feb 2024, 01:34
Forum: ElmerSolver
Topic: SIGSEGV Fault in parallel, but not serial
Replies: 7
Views: 127

Re: SIGSEGV Fault in parallel, but not serial

Almost always due to the partition strategy, in this case I expect Coil Closed = Logical True means that the whole coil has to be in 1 partition not cut over multiple partitions. Same is true for some BCs such as mortar conditions. Looks like some of the parallel processes are failing because some o...
by kevinarden
19 Feb 2024, 22:01
Forum: ElmerSolver
Topic: Temperature plotted in non activated body
Replies: 11
Views: 158

Re: Temperature plotted in non activated body

In my case body 2 and 3 are shown with data using the threshold filter on geometry ID
filter.jpg
(490.37 KiB) Not downloaded yet
by kevinarden
19 Feb 2024, 21:57
Forum: ElmerSolver
Topic: Temperature plotted in non activated body
Replies: 11
Views: 158

Re: Temperature plotted in non activated body

What I did was load the vtu file and just displayed solid color, no results, turned on surfaces with edges to see the elements. Then I went to threshold filter and filtered on bodies 2 and 3 only and selected the desired output data, and turned on edges. This only displays bodies 2 and 3 with data, ...
by kevinarden
19 Feb 2024, 13:56
Forum: ElmerSolver
Topic: lagrangian element selection
Replies: 7
Views: 159

Re: lagrangian element selection

Not the case in the paper, but demonstrates how different order elements can be used in different solvers using P elements.
case.sif
(3.61 KiB) Downloaded 9 times
results.png
results.png (112.95 KiB) Viewed 107 times
by kevinarden
19 Feb 2024, 13:52
Forum: ElmerSolver
Topic: Temperature plotted in non activated body
Replies: 11
Views: 158

Re: Temperature plotted in non activated body

Example of using the threshold filter to show only 2 bodies for the contour, but turning on the whole mesh without results to see whole model.
threshold.png
threshold.png (332.11 KiB) Viewed 89 times
by kevinarden
18 Feb 2024, 20:13
Forum: ElmerSolver
Topic: Temperature plotted in non activated body
Replies: 11
Views: 158

Re: Temperature plotted in non activated body

I would say it is a display issue not an Elmer issue, particularly with the contour option in paraview? I assume. The temperature data is at the nodes, the contour is being averaged across the element. The temperature is zero everywhere in the blue field, but there are values at the boundary, so par...