Elmer Discussion Forum

I downloaded version 5.12 and it works!

Thank you both!

My computer also upgraded those packages over the weekend. I tried to install previous versions of the package but couldn't find them from ubuntu. Do you know a way or do we just need to wait until it is fixed?

Hmm, it looks like it could be a similar issue. I have ParaView 5.10 and libexpat 2.4.7-1ubuntu3.0 (which is the latest version of the package available on my system) and they are talking about (what at least appears to be) a bug in libexpat 2.6. For someone in the thread downgrading to version 2.5 ...

Hi! I am trying to run the electrostatics tutorial and it runs with no apparent errors however when I try to open the .vtu file in ParaView I get two errors: ERROR: In ./VTK/IO/XMLParser/vtkXMLParser.cxx, line 375 vtkXMLDataParser (0x555baebde070): Error parsing XML in stream at line 25, column 0, b...

The problem is I don't know enough about the maths used, I hoped Elmer could do it for me

Thanks for the help, to know what's not possible is also helpful.

Isn't it, physically speaking, that electric flux through a guassiuan surface is determined by the charge enclosed by the surface? So in that sense, they're equal however there is no easy way to determine the charge distribution by just knowing the electric flux. What I'm looking for is surface char...

In the manual (Elmer Models Manual, p.111) it says there exists a toggle "Calculate Surface Charge Density" but I find it doesn't affect the result at all.

Could it be a deprecated feature?

The electric field isn't the same as potential, potential is the integral of electric field strength. And I'm interested in the surface charge density of the electrodes. Not potential nor electric field strength. Electric field strength per area isn't the same as surface charge density. In a uniform...

What do you mean with "the air needs to be 3D volume elements no surface mesh elements"? Because in my .geo file the surrounding air cylinder (I assume that is what you mean) is a volume because it is created with the Cylinder command right? Or do you think that the electrodes being infini...

Hi! I am trying to explore the surface charge distribution on the electrodes of uniform electric fields and I am struggling with Elmer FEM. The goal is to find the surface charge density as a function of x and y on the electrodes. I want the data in a dataset of x, y, and surface charge. My current ...