Interesting! Is this related to the XFEM/Enriched-FEM/Isogeometric-FEM efforts? Can you send me a paper?
/Johan > Andy and I are publishing a paper to this effect. I can send you a copy. > > Matt > > On Jan 15, 2008 9:22 PM, Gideon Simpson <[EMAIL PROTECTED]> wrote: >> Scratch that. I discovered COMSOL does something very nice that boosts >> the >> quality of its results. If I have a curved boundary on my geometry, >> COMSOL >> will interpolate the associated quadrature on the cells along that >> boundary >> to improve accuracy. When I turn that feature off, the results are >> consistent with what I'm getting from FEniCS. >> >> But the question remains: are there any benchmarks? >> >> >> >> >> -gideon >> >> >> On Jan 15, 2008, at 9:51 PM, Gideon Simpson wrote: >> >> >> Has anyone done any benchmarking with dolfin? >> >> I've been comparing some dolfin output to some problems I've previously >> done >> using COMSOL and I have to tell you I'm not crazy about the results. In >> particular, I'm interested in linear Stokes flow problems around objects >> that arise out of homogenization and I find that when I compute the >> domain >> averages of the variables ( pressure, velocity ), as one does in such >> problems, the convergence to a fixed value as the mesh is refined isn't >> so >> good. I've tried both iterative and direct solvers too. >> >> >> -gideon >> _______________________________________________ >> 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 >> >> > > > > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which > their experiments lead. > -- Norbert Wiener > _______________________________________________ > 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
