Search found 434 matches

by kevinarden
Yesterday, 20:43
Forum: ElmerPost
Topic: Viewing the results for flow tutorials
Replies: 1
Views: 25

Re: Viewing the results for flow tutorials

You need to change the file name in the sif to something that ends with .vtu, .ep is the elmer post processing file.
paraview will open the vtu file.

Kevin
by kevinarden
Yesterday, 12:39
Forum: Contributed Cases
Topic: 3D Magnetostaticswith two Supermagnets
Replies: 2
Views: 2751

Re: 3D Magnetostaticswith two Supermagnets

This case is helpful "Attached is the case in somewhat modified form. The same case is now done both in 2D and 3D, and we even obtain same results. I compared to an analytic formula but it is accurate only when x>>R. In this case we have x=2R. Already with x=4R the relative error is reduced to about...
by kevinarden
19 Feb 2020, 23:56
Forum: ElmerSolver
Topic: Tutorial 2D Turbulent flow Model k-e is diverge
Replies: 3
Views: 34

Re: Tutorial 2D Turbulent flow Model k-e is diverge

Not sure which tutorial you are referring to. Can you specify the tutorial manual name and number? or post your mesh along with the sif? This way it can be investigated further.
by kevinarden
19 Feb 2020, 23:47
Forum: Installation & compilation
Topic: New Windows installers
Replies: 5
Views: 52

Re: New Windows installers

I have the same issue on windows 10, solver works fine. GUI has a QT issue. On unix, GUI works but Ububtu 18 or later the convergence tracking plot doesn't work due to a QT issue. W10, Ubuntu 18, QT is out of sorts for GUI.
by kevinarden
19 Feb 2020, 13:56
Forum: Contributed Cases
Topic: Natural convection in front of an aluminium piece
Replies: 6
Views: 6079

Re: Natural convection in front of an aluminium piece

.05 x 1 aluminum plate hot on the left side, .20 air on the right side, boundary wall on the right. Heat conducts through the plate heating the air causing a vertical air flow due to buoyancy, heat convection into the air. Initial condition 293K, Hot side 323K, 0 Velocity. Steady State steady_state....
by kevinarden
18 Feb 2020, 12:57
Forum: Contributed Cases
Topic: Cooling with Elmer
Replies: 5
Views: 5741

Re: Cooling with Elmer

A much larger cube 10 cm x 10 cm I had to widen the mesh, but could let the heat radiate out of the top, at 8 seconds there is still some heat in the cube.
cube.png
(63 KiB) Not downloaded yet
by kevinarden
18 Feb 2020, 01:39
Forum: Contributed Cases
Topic: Cooling with Elmer
Replies: 5
Views: 5741

Re: Cooling with Elmer

Temperatures in files are kelvin, dimensions are in meters. Block is 120C Floor is 0C, Fluid and walls are initially 20C. Floor is assumed to stay 0C, boundaries are open to radiate to external temperature of 20C, creating an infinite medium. Block cools in 6 seconds leaving a plum of heat rising ab...
by kevinarden
17 Feb 2020, 22:31
Forum: ElmerGUI
Topic: dividing bodies from multybody mesh
Replies: 3
Views: 34

Re: dividing bodies from multybody mesh

If you are working in 3D then you can group surfaces together in salome to get the boundaries you want in elmer. Same for edges if you are working in 2D. If you use ElmerGrid 8 2 mesh -autoclean to convert the unv file, it will create an entities name file that tells you the body number and boundary...
by kevinarden
14 Feb 2020, 02:55
Forum: ElmerGUI
Topic: Temperature Expansion Problem
Replies: 4
Views: 50

Re: Temperature Expansion Problem

This case produces the correct result in Elmer. Model is in meters so no scaling is used. The equation being used for comparison is if the whole body has raised 100 delta. Note that you are putting temperature in on the surface which does not make the whole body 100 until it gets to steady state. It...
by kevinarden
13 Feb 2020, 23:10
Forum: ElmerGUI
Topic: dividing bodies from multybody mesh
Replies: 3
Views: 34

Re: dividing bodies from multybody mesh

If you create groups of volume elements in Salome they become bodies. If you create groups of surface elements in Salome they become boundaries. If you are working in 2D then groups of faces become bodies and groups of edges become boundaries. Optionally, If you don't use groups in salome for bounda...