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time dependent boundary conditions on comsol 4.0

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Hi,
Im new with COMSOL.
I built a simple model of a capacitor:
a box with one face set to ground, the parallel face has an electric potential, and all the other boundaries are insulation.
I did it through:
model builder-->model1-->electric currents
(I chose the AD/DC module)

now, I would like to create a time dependent electric field, can I choose the electric potential under "electric currents" to be time dependent?
if so - how do I do it, and what should be the definitions when I create the model?
I tried to define "time dependent" on the study-type in the model wizard, but I dont really know how to use it in the model.

I looked for relevant tutorials but unfortunately couldn't find comsol 4.0 tutorials about time dependency.

thank you for your help,
hilly.

0 Replies Last Post 2010年12月21日 GMT-5 11:52
COMSOL Moderator

Hello Hilly Boimel

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