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how do you address a variable at a specific point?
Posted 12 aug. 2009 04:22 GMT-4 1 Reply
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one of the boundary conditions introduces a new variable (call it "H")
parallel to the diffusion problem, i solve another equation to determine H(x,t)
so far, so good
my problem now is: H depends on c, but only on c(x=1,t).
that is, i cant just put "c" in the subdomain settings for H, because then it would take c(x,t)
so, what i need is "c(x=1,t)" in comsol language
how do i write that? didnt find it in the user guide
thanks so far