Hi,
I don't understand why the field gets nonsymmetric for potential 4000/0 as opposed to 2000/2000.
I have had a look at your geometry. Your capacitor plates are in fact just frames filled with air. Did you use the same geometry in ANSYS?
I would make the plates bodies and assign them a material. And I don't think you need the inifinity BC. To determine the electric field, you can use either of the methods given in the previous posts.
HTH,
Matthias
Elmer8 gives zero results for electric field
Re: Elmer8 gives zero results for electric field
Hi Matthais,
It is an openair capacitor. I am doing explorations for electrostatic precipitators and air filtration, but I wanted to simulate a test case I can benchmark against (a simple openair copper plate capacitor of reasonable size and easily measurable capacitance).
So I should use a coupled ElectrostaticStatic Current solution to solve my problem? I left a void for the conductors because this is the approach taken in the tutorials (both GUI and nonGUI), for the Electrostatic solutions.
If you think this is the wrong approach, I would appreciate any direction you can provide.
regards,
Alejandro
It is an openair capacitor. I am doing explorations for electrostatic precipitators and air filtration, but I wanted to simulate a test case I can benchmark against (a simple openair copper plate capacitor of reasonable size and easily measurable capacitance).
So I should use a coupled ElectrostaticStatic Current solution to solve my problem? I left a void for the conductors because this is the approach taken in the tutorials (both GUI and nonGUI), for the Electrostatic solutions.
If you think this is the wrong approach, I would appreciate any direction you can provide.
regards,
Alejandro

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Re: Elmer8 gives zero results for electric field
Hi Alejandro
The capacitance computation requires two different combinations to determine all the components of the capacitance matrix. The "Capacitance Body" is used to perform the permutations such that potentials are alternatingly 0 or 1. It overruns the standard Dirichlet condition. Also what you see in picture is only the last combination.
Peter
The capacitance computation requires two different combinations to determine all the components of the capacitance matrix. The "Capacitance Body" is used to perform the permutations such that potentials are alternatingly 0 or 1. It overruns the standard Dirichlet condition. Also what you see in picture is only the last combination.
Peter