On Thu, Feb 07, 2008 at 05:43:13PM +0100, Marie Rognes wrote:
Anders Logg wrote:
On Thu, Feb 07, 2008 at 05:07:46PM +0100, Marie Rognes wrote:
Hi,
I would like to construct a vector-valued finite element space
where
the
components may be related to each other on the boundary.
Example:
Let P1 be piecewise linears on K.
I want the subspace {(u, v) \in P1 x P1 such that u = v on the
boundary of K.}
Is this possible in DOLFIN today?
Not that I know. Generally, we can't handle constraints.
Darn. How hard do you think it would be to set-up?
I don't know. There was some discussion a month back on setting
no-slip constraints (zero normal component on boundaries) which is
similar. I think the conclusion was that we didn't find a general
solution. (But most likely there is one...)
--
Anders
