On Mon, Jan 13, 2014 at 10:33 PM, [email protected] <[email protected]> wrote: > Dear list, > > When reading through the FiPy docs, > http://www.ctcms.nist.gov/fipy/documentation/numerical/discret.html > > I noticed that discussion of vertex centred (CV) and cell centred (CC) > meshes. I'm just curious, why did you decided to implement FiPy with CC > approach. Did you find some advantages? I can't find much information on the > internet discussion the advantages/disadvantages other than the storage > argument.
My background was in CC methods so that is mostly why FiPy uses this method. I think I'm right in saying that VC is probably more involved in terms of coding as sub cells need to be constructed. It seems that if you go to the trouble of VC, you may as well program a full FEM. The point of FiPy is to be faily light weight and transparent so that it is quite easy to understand its different parts. VC would be moving away from this philosophy. As far as the relative merits are concerned, I am not really sure off hand. As you say, VC may require more storage, but also has better accuracy on unstructured grids. In terms of publications, it seems like I see a lot more CC rather than VC on the whole if that counts for anything Sorry I can't be more specific. -- Daniel Wheeler _______________________________________________ fipy mailing list [email protected] http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
