Ansys Employee

OK, so you're trying to replicate a result from a paper but don't have the resistance coefficients that they used? From the last image, have you got any data for Mellapak 250.X? That looks to be a brand name for a column packing material, so data may exist in the public domain. 

As an aside, putting all of the liquid down the axis is an awful way to design a scrubber or gas-liquid contactor. If my old Unit Ops lecturer saw that he'd have several things to say about the design!