On Thu, 4 Aug 2011, John Peterson wrote: > On Thu, Aug 4, 2011 at 2:00 PM, Truman Ellis <[email protected]> wrote: >> I need to represent a variable which lives in H(div,K). From what I >> understand, I need to use Raviart-Thomas elements. It doesn't look like >> LibMesh has support for any vector-valued variables (as far as I can >> tell), which just means that I need to represent each coordinate >> separately. Does anyone know how to use / construct Raviart-Thomas >> elements in LibMesh? > > Sadly, I think Roy's response from 2008 still pretty much sums it up... > > http://www.mail-archive.com/[email protected]/msg00731.html > > We anticipate that fairly large changes to the library would be required...
One big change from 2008: we've got a couple other applications at UT that would benefit from vector-valued elements, so now I've got a vested interest in helping add them. Right now wouldn't be a bad time to add the fundamental new methods (Real shape() gets a corresponding Gradient vector_shape(), etc, yes?) necessary. And those would be relatively straightforward additions. Any thoughts? The biggest catch I can think of is that we'd eventually want the constraint and projection calculations to be updated to understand vector-valued bases, but that wouldn't be too hard and it could be postponed until after everything was working fine on fixed conforming grids. --- Roy ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA The must-attend event for mobile developers. Connect with experts. Get tools for creating Super Apps. See the latest technologies. Sessions, hands-on labs, demos & much more. Register early & save! http://p.sf.net/sfu/rim-blackberry-1 _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
