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a problem with Integration

Posted May 3, 2011, 10:44 a.m. EDT Porous Media Flow Version 4.1 0 Replies

Mohammad
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hi everybody,

I have model to be solved. this model has 2 equations and 2 unknowns including a PDE and an ODE. sothing like this:
S + tav * d(S,t) = Eta , Eta=ETA(x,t) & S=s(x,t)
d(S,t) = d^2(phi)/dx^2
and
phi = -int{f(S)*g(S)dS_from_0_to_Eta}
I do not know how to introduce this integration to my model. Is the int(f,0,Eta) function (like Matlab) working? can anyone help?

kind regards,
Mohammad

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0 Replies Last Post May 3, 2011, 10:44 a.m. EDT
COMSOL Moderator

Hello Mohammad

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