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Parallel plate capacitor COMSOL 4.0

Michal Radziwon, Syddansk Universitet

This example show the electrostatic potential and electric fields in parallel plate capacitor with air gap.
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Model by Michal Jedrzej Radziwon

Other Entries by This Contributor

 Bui Chien Sep 19, 2012 at 8:12am UTC Hi, can you tell me how to build this model with AC voltage?
 POONAM Sep 13, 2010 at 9:35am UTC file contains no model.
 Lillie Fischer Mar 30, 2012 at 11:11pm UTC Describes an experiment designed to measure the forces between charged parallel plates, and determines the relationship among the effective electrode area, the measured capacitance values, and the electrode spacing of a parallel plate capacitor. - Lillie, CPR Certification Dallas
 Richard Garner Oct 22, 2010 at 10:39am UTC Tried to run model, but Comsol requests Plasma Module, which I don't have.
 Jan 18, 2011 at 9:43am UTC 1) The uploaded model is created in COMSOL 4.0a and as such it must be opened with COMSOL 4.0a or later. 2) The model requires the AC/DC or Plasma module.
 Abdul Rehman Javed Feb 13, 2011 at 12:41am UTC Hi, In this example you are using a Copper plate with a relative permittivity of 1 while Copper and all other metals have a complex (rather purely imaginary dielectric constants). Please clear this dilemma for me as I am stuck in this for the last one month or so. In forums they suggest some solutions that are not relevant to my case e.g. "http://www.comsol.nl/community/forums/general/thread/6809/" On this forum, I have posted a comment query with explanation of the problem that I am trying to solve. I am actually solving an electrostatic induction problem (no involvement of any frequency) while the texts that I have read say that the complex dielectric constant is a function of frequency. Please, reply to my query.
 moran bin nun Feb 24, 2011 at 7:34am UTC Hellow, I do have comsol 4 and I still can't open this model. It says it has no model DO you have any suggestions? Moran
 Koray Palazoglu Mar 9, 2012 at 1:42pm UTC This example was really helpful. I'm trying to find out how to go about modeling the heating of a dielectric in between the electrodes. I would appreciate any suggestion. Thank you.
 Lillie Fischer Mar 30, 2012 at 11:10pm UTC Comment removed by Lillie Fischer.
 Gaetano L'Episcopo Oct 26, 2012 at 2:16pm UTC Comment removed by Gaetano L'Episcopo.
 Jiujiang Wang Jan 9, 2013 at 9:23am UTC Thanks for sharing.
 Sanjoy Nandi May 25, 2013 at 2:23am UTC Does any one know how to include surface roughness in the plates? I am trying to same simulation with surface roughness
 Zhenxing Zhang Sep 28, 2014 at 9:02pm UTC This is really helpful. Thank you very much. I can open this file by COMSOL 4.4 version.
 Susant Patra Oct 22, 2014 at 11:35pm UTC Just curious, how does it compare with analytical solution for parallel plates?

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