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How to insert a first order concentration derivation to an equation in COMSOL?

Posted 2 juil. 2012, 12:23 UTC−4 1 Reply

Negin Kananizadeh
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Hi

I asked a question in this forum before, but unfortunately I didn't receive any response, maybe it was not a clear question. So I will change my question and asked something more general. I want to add a first order concentration derivation to an built in equation in COMSOL. How can I add this component?

Thanks,

Negin
1 Reply Last Post 2 juil. 2012, 16:42 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2 juil. 2012, 16:42 UTC−4
Hi

there are I asume two ways, one is to turn ON the Preferences Equation View and ten edit the undedrlyi ng COMSOL equations

the other (TBC) would be to find a contributive BC where you add the concentration derivative, but I'm not sre this will work, certainly model dependent

--
Good luck
Ivar
Hi there are I asume two ways, one is to turn ON the Preferences Equation View and ten edit the undedrlyi ng COMSOL equations the other (TBC) would be to find a contributive BC where you add the concentration derivative, but I'm not sre this will work, certainly model dependent -- Good luck Ivar

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