Search found 43 matches

by lazyTom
09 Nov 2018, 17:04
Forum: ElmerSolver
Topic: problems with MGDynamicsCalc
Replies: 4
Views: 1581

problems with MGDynamicsCalc

Hi all, I'm having a problem MGDynamicsCalc solver, given a specific current injected in a simple 3D coil (1 turn surrounded by air) I'm trying to calculate its magnetic energy. The current solver seems to work (I have only checked the statCurrent solver output, btw is there a different way to check...
by lazyTom
03 Oct 2018, 19:26
Forum: Contributed Cases
Topic: magnetostatic with mesh morphing
Replies: 3
Views: 5086

Re: magnetostatic with mesh morphing

Hi Alex,

You can, for example, split the zip file in two or more smaller files directly with winzip. Or decrease mesh density.

Regards,

Marco
by lazyTom
13 Oct 2017, 11:48
Forum: ElmerSolver
Topic: Beginner in using Elmer
Replies: 3
Views: 1676

Re: Beginner in using Elmer

Hi Charlezyi, Another option to keep an eye on for 1D modeling and simulation is openmodelica https://www.openmodelica.org Here you get the bonus of 3D animation included in the simulation (some configuration required...) In your case animation might not be a decision maker since your projectile can...
by lazyTom
06 Jul 2017, 02:34
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

Re: problem with mortar periodic BC

Hi Peter, to further avoid problems with mesh complexity I have prepared a very simple model yet representative of a real world system (KISS rule ;) ). Consider the system shown in the picture below (NB: clicking the picture will expand it, just found it, but maybe I'm the only one that didn't know ...
by lazyTom
18 Jun 2017, 13:50
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

Re: problem with mortar periodic BC

Good morning Peter, " ...However, even after that there seems to be something beyond the mortar FEs making your system hard to converge... " - bad luck?!? :D About your comment of convergence without Mortar BC. If you mean using pure simmetry conditions instead of mortar than I can confirm that the ...
by lazyTom
17 Jun 2017, 19:55
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

Re: problem with mortar periodic BC

Hi Peter, About the minor tips, I have tried all of them but it didn't help. Though my questions reamin still open, I have tried Mortar BC Additive (True/False) but again no resuts. After that, I have prepared a new mesh that uses an unstructured mesh for the volume and a structured 2D mesh on Morta...
by lazyTom
02 Jun 2017, 01:37
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

Re: problem with mortar periodic BC

Hi Peter, Glad to hear that you see 3D electromagnetics as a promising field ^^ By the way, I assume you are aware of the article "Electromagnetic transient finite element 3D modelling of electrical machines using open-source tools"? Ive found it in this post: http://www.elmerfem.org/forum/viewtopic...
by lazyTom
01 Jun 2017, 01:05
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

Re: problem with mortar periodic BC

Hi all, ok, I think I spotted my first error. Also, I have prepared a simpler model and added more details on what I want to do, I hope this will give more chances to get to the bottom of the problem. By the way, I have available data from a real motor design. I think this is a great opportunity to ...
by lazyTom
13 May 2017, 19:20
Forum: ElmerSolver
Topic: problem with mortar periodic BC
Replies: 8
Views: 4045

problem with mortar periodic BC

Hi all, I'm trying to solve for the magnetic field in a 3D electric motor using mortar BCs but I can't make the solver converge. Please find below the details of the model. This is an overview of the mesh, you can see the motor model with the energised coil (it is immersed in air) and the simmetry p...
by lazyTom
09 May 2017, 15:16
Forum: ElmerSolver
Topic: resistance and power dissipation from StatCurrentSolver
Replies: 4
Views: 2055

Re: resistance and power dissipation from StatCurrentSolver

I suspected that :).

I believe this explains all the possible options available for working with these variables.

Cheers,

Marco