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Potential Distribution in AC/DC Module, Comsol 4.3

Posted Feb 26, 2013, 3:35 a.m. EST Low-Frequency Electromagnetics Version 4.3 2 Replies

Suganthan Shanmugalingam
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Hey,

i am working with the AC/DC Module in Comsol 4.3. I have a formula for the potential distribution (V) and I want to calculate the electric field by using the relation: E = - grad(V).

Are there any possibilities to implement this in a 2D, axisymmetric simulation?

Thanks for help
Suganthan
2 Replies Last Post Feb 28, 2013, 10:50 a.m. EST
Edgar Kaiser
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Posted: 1 decade ago Feb 26, 2013, 5:27 a.m. EST
Hi,

there may be ways to do that in COMSOL, but if you have a formula like V = V(r, z), then you can just calculate the gradient analytically and plot it in any visualization software. Even Excel could do that, couldn't it?

Cheers
Edgar
Hi, there may be ways to do that in COMSOL, but if you have a formula like V = V(r, z), then you can just calculate the gradient analytically and plot it in any visualization software. Even Excel could do that, couldn't it? Cheers Edgar
Suganthan Shanmugalingam
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Posted: 1 decade ago Feb 28, 2013, 10:50 a.m. EST
Ok, thanks Edgar.

Actually my aim is to investigate the particle trajectories by using the Charged Particle Tracing Module for a given potential distribution so that is why I asked. But I have found an opportunity to declare the potential (or electric field) to the particles.



Ok, thanks Edgar. Actually my aim is to investigate the particle trajectories by using the Charged Particle Tracing Module for a given potential distribution so that is why I asked. But I have found an opportunity to declare the potential (or electric field) to the particles.

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