David, I was worried about the volume element for integration. If I use explicit transformations of coordinates to spherical how would I make sure that the volume element for integration changes accordingly.
Paul, I am not sure i ll be the best person for the job. With all my honesty (and considering my level of expertise in Libmesh) I might do more harm than good ;) Thank you Peter On May 9, 2013, at 10:57, "Paul T. Bauman" <[email protected]> wrote: > What David said is correct (and how I currently deal with cylindrical > coordinates). Nevertheless, while there are no formal plans, I've thought > it would be nice to try and deal with alternative (to Cartesian) coordinate > systems at the libMesh level. E.g. JxW comes premultiplied by r, > curl/Laplacian/div/etc formulae have the right terms so that the same code > could be used regardless of coordinate system, etc. Alas, it hasn't been > high enough priority for me to spend any time thinking about it and > proposing how to do it, e.g. whether it should be an FE type, etc. > > That said, Peter, if you wanted to take a crack at it, I (and probably > others) would be happy to give guidance. > > > On Thu, May 9, 2013 at 12:48 PM, David Knezevic > <[email protected]>wrote: > >> I'm not sure I understand what you're getting at, but if you write the >> PDE in terms of (r,theta,phi), then you can just use libmesh in the >> standard way. You'll presumably get sin's, cos's and 1/r terms in the >> weak form, but that's no problem... >> >> >> >> On 05/09/2013 01:43 PM, Peter Zajac wrote: >>> Dear All, >>> >>> Is treatment in spherical coordinates an option in Libmesh? >>> If not is there a plan to implement it in the near future? >>> >>> Thank you in advance >>> >>> >>> PZ >>> >> ------------------------------------------------------------------------------ >>> Learn Graph Databases - Download FREE O'Reilly Book >>> "Graph Databases" is the definitive new guide to graph databases and >>> their applications. This 200-page book is written by three acclaimed >>> leaders in the field. The early access version is available now. >>> Download your free book today! http://p.sf.net/sfu/neotech_d2d_may >>> _______________________________________________ >>> Libmesh-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/libmesh-users >> >> >> >> ------------------------------------------------------------------------------ >> Learn Graph Databases - Download FREE O'Reilly Book >> "Graph Databases" is the definitive new guide to graph databases and >> their applications. This 200-page book is written by three acclaimed >> leaders in the field. The early access version is available now. >> Download your free book today! http://p.sf.net/sfu/neotech_d2d_may >> _______________________________________________ >> Libmesh-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/libmesh-users >> > ------------------------------------------------------------------------------ > Learn Graph Databases - Download FREE O'Reilly Book > "Graph Databases" is the definitive new guide to graph databases and > their applications. This 200-page book is written by three acclaimed > leaders in the field. The early access version is available now. > Download your free book today! http://p.sf.net/sfu/neotech_d2d_may > _______________________________________________ > Libmesh-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/libmesh-users ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
