> On Tue, Feb 12, 2008 at 10:23:09AM +0100, Dag Lindbo wrote: >> Hello all! >> >> In the stokes demo (taylor-hood), I notice spurious pressure spikes near >> the corners. What is causing these? >> >> I changed to a paraboloc inflow profile (consistent with the no-slip >> BCs), >> but the problem remains. Further, I ran the same problem on a unitsquare >> mesh (see plot attached). The pressure spikes are large. Is the demo >> problem ill posed? >> >> Thanks! >> Dag Lindbo, KTH > > I would also suspect the boundary conditions for the velocity > to be the problem, but if you still see the spikes with a parabolic > inflow profile (which is zero at the no-slip boundaries) then I have > no idea. > > -- > Anders
Is this in all corners? Could you send a plot? /Johan > _______________________________________________ > DOLFIN-dev mailing list > [email protected] > http://www.fenics.org/mailman/listinfo/dolfin-dev > _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
