Mattia Assanelli <[email protected]> a écrit :
> Good morning everybody
> I succeded in solving my "generic elliptic" problem, but I still have
> some troubles analyzing data:
> - I noticed that on the boundary the value imposed by a Dirichlet
> condition ins't respected by the solution...
Well ! If you use a multiplier having a lower degree than the main
unknow you can have a little difference since the Dirichlet condition
is prescribed in a weak sense. But if the multiplier is string enough
the Dirichlet condition will be exact.
> - I also tryed to calculate the flux through the contact...is there a
> simple alternative to manually integrate the gradient on the boundary
> surface?
To integrate the gradient on the boundary is not a good idea.
Theoretically, you are not garanted that this value converges toward
what you want. It is strongly better to integrate the multiplier
ensuring the contact condition.
Yves.
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