Hello, I have a 2D diffusion problem defined on a regular square mesh, and am using the Matlab interface. Since I need to model strong diffusion anisotropies along the domain, I defined a diffusion matrix for each dof (the dofs correspond exactly to the vertices of the sequare elements of the mesh- i.e. the convexes). Now, when the integrals are calculated during the assembly procedure, on each element is defined a coefficient which is the mean value of the 4 values of the element vertices - am I right? My question is, suppose we have a square element with four 2x2 matrices A,B,C,D, defined on the 4 dofs (vertices of the square) like this:
A ------- B | | | | C--------D what is the matrix coefficient defined on the element? Is it (1/4)(A+B+C+D) ? thank you again for your time and precious work. Marco Trevisan _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
