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Impose a value at boundary
Posted 2010年1月23日 GMT-5 15:02 1 Reply
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Hello,
I am using the AC/DC module in 2D, solving for the magnetic potential Az.
I would like to impose the value of Az on a boundary. How do I do that? I can only choose magnetic insulation, continuity, etc...
Thanks in advance.
K
I am using the AC/DC module in 2D, solving for the magnetic potential Az.
I would like to impose the value of Az on a boundary. How do I do that? I can only choose magnetic insulation, continuity, etc...
Thanks in advance.
K
1 Reply Last Post 2010年1月25日 GMT-5 07:51
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Posted:
1 decade ago
Hi
I have also Magnetic potenrial Az in my list (in "qa" mode I have 5 choices, in "emqa" 6) thats normally enough no ?
What is it doing to the physics on the boundary ?
Well comsol adds a constriant on Az i.e.: -Az+A0z_emqa = 0 and a constraint force test(-Az+A0z_emqa), where A0z_emqa is the value you define on the border
But I'm running V3.5a, its useful to define [3.5a emqa] in the subject o your questions (or whatever version/module you are referring to), its helps for us other out here to better uderstand as there is quite some difference with the latest evolution of COMSOL (positive evolution for the users, I mean).
Good luck
Ivar
I have also Magnetic potenrial Az in my list (in "qa" mode I have 5 choices, in "emqa" 6) thats normally enough no ?
What is it doing to the physics on the boundary ?
Well comsol adds a constriant on Az i.e.: -Az+A0z_emqa = 0 and a constraint force test(-Az+A0z_emqa), where A0z_emqa is the value you define on the border
But I'm running V3.5a, its useful to define [3.5a emqa] in the subject o your questions (or whatever version/module you are referring to), its helps for us other out here to better uderstand as there is quite some difference with the latest evolution of COMSOL (positive evolution for the users, I mean).
Good luck
Ivar