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 The information provided may be out of date.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.
Please help - Maxwell Boundary element integral
Posted 09.06.2014, 03:20 GMT-4 Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 3.5a 0 Replies
Please login with a confirmed email address before reporting spam
I'm trying to solve Maxwell electrostatic surface integral equation,
lambda*U(r) = 1/(2*pi)* Integrate( U(r') (r-r')/(abs(r-r'))^3 ds)
for a sphere. Lambda is an eigenvalue and the integration is over the surface of the sphere. I used weak form boundary (wb) module as mentioned in (www.comsol.com/community/forums/general/thread/3389 ) by Marc Jouan. I used boundary free mesh and solved for eigenvalues near 0.
However, the results I'm getting is quite different from the known Mie theory results. ( The lambda for lowest dipole mode should be around 0.333). But here result doesn't even give a dipole.
It seems this is a very simple simulation but, even after so many efforts I still cannot figure out what goes wrong here. Please can any one be kind enough to look at my model and give some feed back. I have also attached the example given in above link.
Thanks in advance
Ind Atan
Attachments:
Hello Ind Atan
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.