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Looking for advice - capacitor with multiple dielectrics
Posted Nov 4, 2014, 7:14 a.m. EST 1 Reply
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Hello everyone,
I started working with Comsol 2 days ago so I apologize in advance if my question is basic.
I have a plastic tube submerged in different liquids. Inside the plastic tube there are 3 rings. 2 of them are conducive,and in between the third ring is dielectric. I want to simulate the equivalent capacity of the setup. In theory , the equivalent capacity should be dependent on the 3 dielectrics that are between conductors (dielectric constant of the third ring , dielectric constant of the surrounding plastic , dielectric constant of the liquid). I would also like to see the electric fields arrows (how the electric field lines are closing).
Can anyone advise about the best simulation type ?
I've tried different approaches but I don't seem to get the results I expect.
Thank you in advance.
I started working with Comsol 2 days ago so I apologize in advance if my question is basic.
I have a plastic tube submerged in different liquids. Inside the plastic tube there are 3 rings. 2 of them are conducive,and in between the third ring is dielectric. I want to simulate the equivalent capacity of the setup. In theory , the equivalent capacity should be dependent on the 3 dielectrics that are between conductors (dielectric constant of the third ring , dielectric constant of the surrounding plastic , dielectric constant of the liquid). I would also like to see the electric fields arrows (how the electric field lines are closing).
Can anyone advise about the best simulation type ?
I've tried different approaches but I don't seem to get the results I expect.
Thank you in advance.
1 Reply Last Post Nov 4, 2014, 1:56 p.m. EST
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Posted:
1 decade ago
Hi,
Since you are interested in the electric field distribution, you can either use the electro-static physics (es) or the radio frequency physics (emw). Depending on your operating frequency, you can select which physics fits with your problem. BTW, You can check the differential equation solved by COMSOL in any physics by clicking on the physics -> equation.
Hope that this will be useful
BR
Mohamed
Since you are interested in the electric field distribution, you can either use the electro-static physics (es) or the radio frequency physics (emw). Depending on your operating frequency, you can select which physics fits with your problem. BTW, You can check the differential equation solved by COMSOL in any physics by clicking on the physics -> equation.
Hope that this will be useful
BR
Mohamed