Thanks for your response I am going to try to implement these functions with the LAGRANGE_VEC because it would work better for me. So I have the first questions:
Function compute_proj_constraints. I understand it imposes a constraint on the hanging nodes so they have a value related to their side neighboring nodes. How are they related? Linear interpolation? Do you know of a paper or document where this projection is mathematically written? With regards to this issue, could it be easier to do adaptive mesh refinement on unstructured grids? Does libmesh support this? Miguel On Tue, May 27, 2014 at 11:48 AM, Paul T. Bauman <ptbau...@gmail.com> wrote: > On Tue, May 27, 2014 at 12:45 PM, Miguel Angel Salazar de Troya < > salazardetr...@gmail.com> wrote: > >> Thanks for your response. I would like to, but it might be in over my >> head since I am just starting with libmesh. >> > > Everyone has to start somewhere. ;-) I started by refactoring finite > element classes and adding LAGRANGE_VEC. :) > > >> So far, the best alternative to use AMR in a elasticity problems would be >> using a system of equations? >> > > Instead of using vector-valued elements for the (I'm assuming) > displacement field, have each component (u,v,w) be a LAGRANGE variable. You > should be able to do the same formulation (since you're doing LAGRANGE and > not anything fancy), you'll just have to either 1. populate data structures > locally for the tensor operations or 2. manually do the tensor operations. > > In fact, I believe one of the examples is an elasticity example... > > HTH, > > Paul > -- *Miguel Angel Salazar de Troya* Graduate Research Assistant Department of Mechanical Science and Engineering University of Illinois at Urbana-Champaign (217) 550-2360 salaz...@illinois.edu ------------------------------------------------------------------------------ The best possible search technologies are now affordable for all companies. Download your FREE open source Enterprise Search Engine today! Our experts will assist you in its installation for $59/mo, no commitment. Test it for FREE on our Cloud platform anytime! http://pubads.g.doubleclick.net/gampad/clk?id=145328191&iu=/4140/ostg.clktrk _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
