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Coefficient form PDE with two dependent variables

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Hi, I need to model this equation (shown in the image attached) in COMSOL. For which coefficient form PDE sounds good.

Two dependant variables: s,Ф

If I select number of dependant variables = 2 from "Dependant variable section" of coefficient form PDE. Then the value of coefficient (ea, da, c etc) shows four spaces how to put in the coefficient values then?

Any suggestions for modelling this equation please?

Can anyone guide in this regard? Thanks in advance.



0 Replies Last Post Nov 29, 2020, 1:42 p.m. EST
COMSOL Moderator

Hello K Azhar

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