Retrieving boundary patch values adjacent to a given cell

brooksmoses

So, I have an OpenFOAM code that's creating output files based on the values in a mesh created using blockMesh on a single block. At this point, everything's working reasonably nicely for the cell-centered values.

What I'd now like to include is values on the outer boundaries of the block. Specifically, given a cell that I happen to know is on a face of the block, I'd like to get the values of U and p on its face that's on the boundary patch. (Or, if it's on an edge or corner, the values on all of the relevant faces.) Is this possible? How would I go about it? What bits of code should I look at for a starting point?

Thanks!