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about differential equation expression

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Hello everyone


d(mat1.def.rho(T) * r * u , r)

r, u is dependent on r

but rho(T) is only dependent on T


so I want to get result like this

==> mat1.def.rho(T) * u + mat1.def.rho(T) * r * du/dr

would it be alright?



Regards

Dong seok

0 Replies Last Post Jul 15, 2010, 1:56 a.m. EDT
COMSOL Moderator

Hello Dong seok Lee

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