Search found 3404 matches

by raback
18 Apr 2019, 15:47
Forum: ElmerSolver
Topic: Apply Lorentz force as body force for Lin Elast solver
Replies: 8
Views: 528

Re: Apply Lorentz force as body force for Lin Elast solver

Hi

Look at test case mgdyn_airgap_force:
https://github.com/ElmerCSC/elmerfem/tr ... rgap_force

There a concept of "component" is used to group together bodies. In these bodies you can automatically sum up the nodal forces that you have already computed.

-Peter
by raback
03 Apr 2019, 17:52
Forum: ElmerSolver
Topic: Conjugate heat transfer problem
Replies: 6
Views: 196

Re: Conjugate heat transfer problem

Hi Mark

Are you sure that your heat is not convected away at the outlet, or is not eaten up to warm the system in a transient case?

Peter
by raback
29 Mar 2019, 13:59
Forum: General
Topic: Calculation of Magnetic Force in 3D simulation
Replies: 1
Views: 83

Re: Calculation of Magnetic Force in 3D simulation

Hi Basically the calc fields can compute nodal magnetic forces that are in units of Force i.e. Newtons in SI units. To have the total force you need to sum up the nodal forces in given domain. For this you can use the component concept. The force always has three components corresponding to each coo...
by raback
29 Mar 2019, 13:46
Forum: ElmerSolver
Topic: Friction in limit displacement boundary condition
Replies: 1
Views: 61

Re: Friction in limit displacement boundary condition

Hi

There seems to be two ways to account for friction: explicit and implicit. Look at test cases ContactFriction* for examples. The limitation is that frictional force is assumed to be proportional to the normal force.

-Peter
by raback
28 Mar 2019, 14:54
Forum: Bug reports
Topic: Segmentation Fault with WhitneyAVSolver
Replies: 1
Views: 103

Re: Segmentation Fault with WhitneyAVSolver

Hi The problem is somewhat puzzling. The test case runs through for me, as well as on travis, see https://travis-ci.org/ElmerCSC/elmerfem/builds/512435283?utm_source=github_status&utm_medium=notification (only slow tests are skipped) You could perhaps try to remove the "CONTIG" parameter in reluctiv...
by raback
27 Mar 2019, 02:40
Forum: ElmerSolver
Topic: how to generate solver ?
Replies: 2
Views: 73

Re: how to generate solver ?

Hi julilo

This is still relevant:
viewtopic.php?f=15&t=2990&p=17853&hilit=ModelPDE#p9292

Do you have any idea whether your system can be solved weakly coupled or as a monolithic system?

-Peter
by raback
26 Mar 2019, 00:37
Forum: ElmerGUI
Topic: Elmer Challenge
Replies: 39
Views: 562

Re: Elmer Challenge

Hi Kevin, Nice work! We'll hopefully have time to review it and at to the distribution. Would this be ok to you? The "Cartesian 3D" is redundant usually as the code determines the mesh dimension from the coordinates & element dimensions. Hence you can usually use "Cartesian" both in 2D and 3D. -Peter
by raback
24 Mar 2019, 19:56
Forum: ElmerSolver
Topic: Case ID and simple calculation whit SaveLine
Replies: 2
Views: 78

Re: Case ID and simple calculation whit SaveLine

Hi joni I would perhaps not save everything in one file. Currently SaveLine does not support adding any index in a nice way. SaveScalars has the keyword "Line Marker" which makes it possible to mark different lines easily. Instead if you're running over several meshes you could have some simple unix...
by raback
24 Mar 2019, 19:18
Forum: ElmerGUI
Topic: Elmer Challenge
Replies: 39
Views: 562

Re: Elmer Challenge

Hi, Yes, the serious use of Elmer tends to be more about rather static workflows where the power comes from scripting, not from clicking. One could basically take any model in Elmer Models Manual and create an XML file for them to be usable via the GUI. Even the FredCAD and Salome Elmer plugin proje...
by raback
20 Mar 2019, 00:06
Forum: ElmerSolver
Topic: Result Output error
Replies: 2
Views: 105

Re: Result Output error

Hi Mark Ok, have to look into this someday. Seems strange. If the Name keyword is there then the ValueList_t associated with the boundary is not even empty. Btw, there is no need to define natural BC (heat flux = 0) since it happens when you do nothing. It may of course be helpful for people reading...