Learning Forum

[Mark Smith]

I'm trying to simulate the effects of electrodes in solution on an existing electric field in Maxwell 2d/3d. I have several electrodes with varying impedance to each other and distant parts of the solution. How can I specify this relationship between the boundaries? 

[Howard Li]

Hello Mark,

     Could you show some images and more informaiton to explain what is varying impendence and distant parts? Thanks

HDLI 

[Mark Smith]

Hi HDLI. Do you have any recommendations, or requests for additional clarification? 

[Mark Smith]

For example, COMSOL has Lumped Elements and Lumped Ports to solve these issues. Is there a Maxwell equivalent? 

[Mark Smith]

 

Say I have a simple dipole simulation, like above. I want to add two more electrodes to the field, say one at (10,50,0) and another at (10,-50,0). Then I want to put a known impedance between them, so I can measure the current through the element and the effect on the field. Alternatively I could put one at (10,50,0) and one at (10,1000,0) and see the effect of a connection to a 'distant' part of the simulation. Maybe a computationally more effective solution would be to set a boundary with a known impedance to a fixed voltage. These seem like trivially obvious applications for Maxwell but I haven't been able to find any examples. 

[Mark Smith]

What other information would be useful here? Having external circuit elements that influence the fields seems like a pretty basic task for an electronics simulation package. I know COMSOL can do it, as well. 

[Howard Li]

Hello Mark,

     Could you try to use Maxwell 3D transient A-phi formulation? I think this solver could simulate above and with external circuit. Thanks.

HDLI