dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Dec 15, 2009 at 10:55:38AM +0100, Artur Poźniak wrote:
> Hello,
>
> I'd like to implement periodic boundary conditions and for this I need equal
> displacement constraint. Is some routine for Lagrange multipliers already
> implemented?
> Sorry if the answer is too obvious but I couldn't find the dolfin's reference.
>
> thanks
> Artur Pozniak

No, there's no built-in support. You will have to try to do it
manually.

You could also try enforcing the periodicity strongly using the
PeriodicBC class.

--
Anders

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