Merged requested to merge fix/staggered-velocity-output into master
It seems that in the lambda function the wrong fvGeometry has been used. It seems that this actually doesn't make any difference in the solution because the lambda is always called with the fvGeometry passed to the
Maybe we could also think about deleting the fvGeometry argument when calling
getFaceVelocity. I current don't really see why one would need a different fvGeometry.