Hello. Le lundi 21 décembre 2009, Juzar Thingna a écrit : > Hello Everyone, > I'm quite new to the fictitious domain method of solving PDE. I wanted to > know how is this method better than the Finite element method? It is not better. FDM relies usually on finite element method.
> while doing > some basic research one advantage I see is that the number of iterations > for convergence in CG is quite small in complex geometries because of the > pre-conditioner used. This can be the case for some methods but in ff3d, FDM are used to avoid the complexity of 3D mesh generation. It is not a performance issue. > But I'm still not able to figure out how the > geometry can make the matrix ill-conditioned? You should have a look to finite element method analysis. Best regards, S. _______________________________________________ ff3d-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/ff3d-users
