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3D electrostatic simulation with complex geometry
Posted 24.03.2017, 05:25 GMT-4 Low-Frequency Electromagnetics, Geometry, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.1 0 Replies
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I am currently working on some 3D electrostatic simulation. Basically, I am building a model for a high voltage environment consisting of a gate electrode (-7kV), an anode electrode (+7kV), a dielectric piece spacer (PEEK), and a grounded vessel. The final geometries, imported from STL, would be quite complex.
The main issue I have is how to use form assembly correctly in my simulation?
The geometry contains different parts. It is difficult to use "form union" without encountering "geometry decomposition". However, using "form assembly", COMSOL doesn't mesh correctly between the vessel and the electrodes.
I've tried a simple case using COMSOL's capacitor example (www.comsol.com/model/computing-capacitance-12689). Instead of using "form union", I used "form assembly" to perform the calculation. However, the simulation doesn't calculate electric field or potential between different metals. I think this results from meshing the geometry.
I've attached described result and the simplified model in the attachment.
Thanks in advance.
FT
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Hello FengTing Liao
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