Hello,
I want to solve a 2D flow problem in a rectangle geometry. The boundaries of the problem are the inlet , the outlet and the wall. At the wall I impose a no slip condition through a Dirichlet BC. At the outlet I impose the “do nothing” condition and at the inlet I want to impose my own equation that will be solved with the 2D problem simultaneously. To do this, I need to have access to residual and jacobian contributions of the vertices (or the dofs if we suppose that we have quadratic elements) that belong to the inlet boundary. Is there any way to have this accessibility ?
Thank you