Search found 10 matches

by bertac
16 Sep 2016, 13:22
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi, doing the simulations I'm seeing a strange value of the electric field. I've attached the screenshot of the mesh, the potential and the electric field calculated with this sif file: Header CHECK KEYWORDS Warn Mesh DB "." "." Include Path "" Results Directory "&...
by bertac
15 Sep 2016, 09:36
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi Peter, I solved the issue using the step check tool in Netgen. It creates the required connections obtaining a single body with all the objects integrated. The last think I was not able to reproduce is the graph. It seems you have taken a section of the sphere volume looking it from the top. So, ...
by bertac
14 Sep 2016, 13:00
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi, I did it, but with no results. I tried to understand why I have this result and I think that the problem could be due to the mesh. It seems that the mesh of the outer material and the mesh of the electrodes are not connected. I have created 3D volumes for each object and I have placed them in th...
by bertac
13 Sep 2016, 18:31
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi Peter, I checked again with more detail the tutorial you suggested me. Now I found the way to have the solver working: I have to eliminate the body definition of the electrodes leaving only one body, as explained in the tutorial. The sif file is now: Header CHECK KEYWORDS Warn Mesh DB ".&quo...
by bertac
13 Sep 2016, 12:37
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi Peter,
the solver doesn't accept an empty or zero value for the equation.
So how can I say it to solve only the external material?

Thanks
Claudio
by bertac
13 Sep 2016, 12:20
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi Peter, I tried to follow your suggestion, but I receive the following error during solver calculation: WARNING:: ListFind: Requested property: [Equation], not found This is the .sif file: Header CHECK KEYWORDS Warn Mesh DB "." "." Include Path "" Results Directory &q...
by bertac
12 Sep 2016, 11:25
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Re: Simulation of the electric field generated by 4 electrodes

Hi, thanks for the suggestions. Just one question. Since all the materials are conductors (stainless steel and human tissue simulated with water having a specific conductivity), and the relative permitttivty of the stainless steel is not foreseen in the material library, what value do you suggest to...
by bertac
09 Sep 2016, 17:58
Forum: ElmerSolver
Topic: Simulation of the electric field generated by 4 electrodes
Replies: 14
Views: 9436

Simulation of the electric field generated by 4 electrodes

Hello, I'm trying to simulate the electric field genrated by 4 electrodes into a material. The electrodes are activated as couple and not all at the same time. I'm using the "Static Current Solver" to calculate the potential and the "Flux and Gradient Solver" to calculate the gra...
by bertac
09 Sep 2016, 16:49
Forum: Installation & compilation
Topic: Installation on ubuntu 16.04 LTS
Replies: 13
Views: 19829

Re: Installation on ubuntu 16.04 LTS

Hello, after the evaluation of several forums, I think I solved my problem in an acceptable way. The solution, in my case, has been the following: 1) create and add into the .bashrc file the variables : ELMERGUI_HOME=/usr/share/ElmerGUI ELMERSOLVER_HOME=/usr/share/elmersolver ELMERLIB=/usr/lib/elmer...
by bertac
06 Sep 2016, 16:37
Forum: Installation & compilation
Topic: Installation on ubuntu 16.04 LTS
Replies: 13
Views: 19829

Re: Installation on ubuntu 16.04 LTS

Hello, I'm writing in this post because I'm still having the same problem: Elmer was working perfectly on ubuntu 14.04 but after the upgrade to 16.04 I had to reinstall it. I have reinstalled elmer 8.2 from the PPA and now I'm seeing the message shown in the first post. I've tried to export the vari...