Dear Colleagues,
I use the finite element method to solve my problem in Petsc. Mesh is defined as a regular mesh using DMDA. I have a special boundary condition which I do not know how to impose it in Petsc. In a 2D problem, the domain is unit size, two degrees of freedom per node (u, v). I would like impose the following boundary condition: u(x=1) = -v ( y=1) and v(x=1 )= -u (y=1) . How can I impose such a boundary condition in Petsc? Thanks a lot. Best regards Fengwen ____________________________________________________ Senior Researcher Department of Mechanical Engineering, DTU Nils Koppels Allé Building 404 2800 Kgs. Lyngby [email protected]
