Compute Pressure in 2D Flow


I would like to know is there any way to compute the pressure of a 2D internal flow with Palabos? It is not possible to implement the Hagen-Poiseuille Law as for my case, I am trying to compute the pressure at the obstacle inside the flow domain. There are readily available functions in 3D but not much in 2D. I am hoping for assistance in this matter. Thank you.