Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Defining extra solving constraints
Posted 28.05.2014, 10:14 GMT-4 Low-Frequency Electromagnetics Version 4.3b 2 Replies
Please login with a confirmed email address before reporting spam
Hi,
I’m trying to model an electrode recording the electrical potential generated within a complex medium.
“Unfortunately” the exposed metallic part of my electrode (a small metallic disk) has a really small thickness compared to the rest of the dimension of the model. This makes it quite difficult to properly mesh the electrode. And this super heavy mesh makes the computing super long…
My idea would have been to approximate the metallic disk with a constraint that would stipulate that this surface has to be isopotential.
Does somebody know a way to do this?
Or does anybody have a better idea of how to make the whole solving faster? (I have to run simulation for a lot of different parameters)
Thanks!
B
I’m trying to model an electrode recording the electrical potential generated within a complex medium.
“Unfortunately” the exposed metallic part of my electrode (a small metallic disk) has a really small thickness compared to the rest of the dimension of the model. This makes it quite difficult to properly mesh the electrode. And this super heavy mesh makes the computing super long…
My idea would have been to approximate the metallic disk with a constraint that would stipulate that this surface has to be isopotential.
Does somebody know a way to do this?
Or does anybody have a better idea of how to make the whole solving faster? (I have to run simulation for a lot of different parameters)
Thanks!
B
2 Replies Last Post 29.05.2014, 09:14 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hello Beryl,
The AC/DC Module, MEMS Module, Semiconductor Module and Plasma Module include a boundary condition for electrostatics called "Floating Potential" that does what I think you want, i.e. specify that an entire boundary is at a single not-known-in-advance electric potential.
Best,
Jeff
The AC/DC Module, MEMS Module, Semiconductor Module and Plasma Module include a boundary condition for electrostatics called "Floating Potential" that does what I think you want, i.e. specify that an entire boundary is at a single not-known-in-advance electric potential.
Best,
Jeff
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
ok thanks!