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Charge accumulation

Posted Jan 8, 2015, 7:13 a.m. EST Low-Frequency Electromagnetics, Plasma Physics, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.4 1 Reply

Igor Liubarsky
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Hello,

We want to simulate charge accumulation on a surface. The surface has a penetrating electric field on in and there is a non trivial charge density outside the surface. As the charges accumulate on the surface they will change the electric field until the field becomes parallel to the surface at which point charge accumulation should stop.

But how to do this?

We would be grateful for any hits how to proceed. Also if there is a existing COMSOL model that can do this or something similar.

Thank you in advance.
1 Reply Last Post Jan 8, 2015, 8:35 a.m. EST
Daniel Smith COMSOL Employee

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Posted: 10 years ago Jan 8, 2015, 8:35 a.m. EST
This is the operating principle of a dielectric barrier discharge (DBD). There is an example in the Plasma Module Model Library:

www.comsol.com/model/dielectric-barrier-discharge-8637

Dan
This is the operating principle of a dielectric barrier discharge (DBD). There is an example in the Plasma Module Model Library: http://www.comsol.com/model/dielectric-barrier-discharge-8637 Dan

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