Hi all, I want to solve the transient linear equation of diffusion.
It seems that there is no function pre-build in getfem for the transient problems. So I assemble the mass matrix (MM) and stiffness matrix (SM) "manually", and then construct the linear system A*X=B using the backward euler A = (MM + delta t * SM) B = MM * X(t-1) Then I have to impose dirichlet conditions on the surface. I import my mesh from gmsh, where the surface are tagged with a number (in my case 200). How can I modify my linear system to take into accompt the dirichlet conditions? All the functions I found in the documentation are in the case where you use model bricks or standard assembly procedures... If I can have the list of node numbers tagged by 200 I would use the penalty method. But I am not able to obtain these list. I am using the python interface of getfem. Thanks for your help, Best regards, Janas Sébastien _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
