-
Filter by Topic
Most Popular
All Topics
- List all discussions
LinkedIn
Facebook
Twitter
Delicious
Digg
Stumbleupon
More services...Problem meshing eddy current simulation.
|
Thread index | Previous thread | Next thread | Start a new discussion |
RSS feed |
Turn on email notifications |
3 Replies
Last post: February 13, 2012 1:15pm UTC
February 10, 2012 6:36pm UTC
Problem meshing eddy current simulation.
Hi all!
I´m having some problem with the mesh in an Eddy current simulation.
I´m a new user of comsol, so if you have some material about how to correct mesh to improve the resolution of Eddy current problems I would appreciate to.
Thank´s in advance! My model is attached below!
CYA,
JV
Reply | Reply with Quote | Send private message | Report Abuse
February 10, 2012 8:05pm UTC in response to Joao Vicente Rocha
Re: Problem meshing eddy current simulation.
Hi
I'm not by my COMSOL WS so I cannot take a quick look, but one thing that is important with Eddy current simulations, is to resolve correctly the region where the Eddy current develop. This is often in the "skin layer" at a metallic boundary. Therefore you need dense mesh perpendicular to the skin depth decay, and lateral w.r.t the Eddy current loop you expect (model B field dependent). I would recommend to se a "boundary mesh" on the conductive side, and adapt its size to resolve correctly the skin depth, or better 2x the skin depth
Then if you have an AC field, do not forget for the ACDC hypothese to be correct (else consider RF) that your wavelength in the mteril is much greater than the model
--
Good luck
Ivar
Reply | Reply with Quote | Send private message | Report Abuse
February 13, 2012 11:59am UTC in response to Ivar Kjelberg
Re: Problem meshing eddy current simulation.
Ty for your response,
I´m having bad times trying to simulate this model. I need to see the impedance plan variation when the coil pass on a very small notch in the tube wall. Two issues here:
1 - The superficie is a tube, so is much more trickier to mesh this;
2 - The notch width is 85 microns, so I´m encountering more difficults to mesh it to...
Some help in this issues would be appreciated.
[]´s,
JV
Reply | Reply with Quote | Send private message | Report Abuse
February 13, 2012 1:15pm UTC in response to Joao Vicente Rocha
Re: Problem meshing eddy current simulation.
Hi
very large size ratios are difficult to mesh, often one need to cut up the bulk material a few times, check the FORUM for meshing, there are several discussion there on "how to better mesh". In anycase be sure you have a fine enough mesh for your induced Eddy current region
--
Good luck
Ivar
Reply | Reply with Quote | Send private message | Report Abuse
Rules and guidelines
