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Computing capacitance of a sub domain
Posted 15 ago 2016, 13:24 GMT-4 Low-Frequency Electromagnetics, Results & Visualization 3 Replies
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Hi
I've just completed the "computing capacitance" tutorial provided by Comsol here : www.comsol.com/model/computing-capacitance-12689
The model is constituted of a capacitor surrounded by air, and the tutorial shows how to compute the total capacitance, ie that of the dielectric + that of the air surrounding the capacitor. I would like to know how to calculate the individual contribtions of the dielectric and air to the total capacitance, in other words, how to calculate individually the capacitance of the dielectric and the surrounding air.
Thanks !
I've just completed the "computing capacitance" tutorial provided by Comsol here : www.comsol.com/model/computing-capacitance-12689
The model is constituted of a capacitor surrounded by air, and the tutorial shows how to compute the total capacitance, ie that of the dielectric + that of the air surrounding the capacitor. I would like to know how to calculate the individual contribtions of the dielectric and air to the total capacitance, in other words, how to calculate individually the capacitance of the dielectric and the surrounding air.
Thanks !
3 Replies Last Post 16 ago 2016, 08:43 GMT-4
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Posted:
8 years ago
Pascal,
you can integrate the electrostatic energy in the subdomains you are interested in.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
you can integrate the electrostatic energy in the subdomains you are interested in.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
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Posted:
8 years ago
Thanks for the reply Edgar.
I was trying to find a way of using the derived values calculated automatically by Comsol, as detailed in the capacitance tutorial (Electrostatics>Terminals>es.C11 - Capacitance). Is this even possible for a sub-domain ?
I was trying to find a way of using the derived values calculated automatically by Comsol, as detailed in the capacitance tutorial (Electrostatics>Terminals>es.C11 - Capacitance). Is this even possible for a sub-domain ?
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Posted:
8 years ago