Static Current Conduction

[teepeeaye]

Hello. First I will thank the people who put their efforts into the Elmer program and this forum. Very cool.

I trying to estimate the resistance and heat generation in a somehow complex geometry. I have the basis analysis running and can display distibution of "Potential" and "Joule.Heating". I have these questions:

1. Is it possible to see somewhere the amount of current passing through each boundary with prescribed voltage condition?
2. Is it possible to display the distribution of current density [A/m2] at the boundary surfaces?
3. The solver log says: "StatCurrentSolve: Total Heating Power : 1.17374053293362881E-003"
- Working with SI units, is this then the integral of ohmic heat over the Body in W?

Thanks for your comments and feedback.

[raback]

Hi

1) Yes. Two alternatives. Look at discussion on computing heat flux and just replace Temperature -> Potential and Heat Conductivity with Electric Conductivity. In short

• Calculate Loads + SaveScalars solver & boundary sum (more accurate)
• SaveScalars solver & diffusive flux

2) Yes, SaveLine solver
3) Yes, there should be even an estimate of the resistance using R=U^2/P. See StatCurrent.src in line ~450

-Peter

[teepeeaye]

Thank you very much for the quick answer. I will try your sugestions.