Klaus, > I have a small question on assembling my system. When setting up my > equations in general I get a boundary term from integration by parts, > which is as far as I've seen neglected in all the tutorials of deal.II. > Now I'm wondering how I can handle these boundary terms. Can you help me > here?
You have to think about what these boundary terms actually mean *physically* to your system. There is, for example, no problem over-specifying boundary constraints (this is done in step-36). Flux, zero, inverse, reflection? How do you want to handle those terms? Handling boundary constraints with deal.II can be a simple or complex as you like. There are plenty of fun tools in the VectorTools class: http://www.dealii.org/developer/doxygen/deal.II/classVectorTools.html Without knowledge of your equation set, there is no meaningful answer to your question. In any case, I hope that helps a little. Best, Toby ----- Toby D. Young Assistant Professor Institute of Fundamental Technological Problems Polish Academy of Sciences ul Adolfa Pawinskiego 5b 02-106 Warsaw Poland www: http://www.ippt.gov.pl/~tyoung skype: stenografia _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
