Finding Measurement of Mass Flow Rate
 

Hello,
I am running OpenFOAM 2.2.0 on Ubuntu 12.04.2, and am very new to the program and CFD. I ran the compressibleTwoPhaseEulerFoam solver on the fluidisedBed case. (Location: tutorials/multiphase/compressibleTwoPhaseEulerFoam/fluidisedBed.) Is there a way to find the measurement of mass flow rate in post processing the results using paraView, another 3rd party program, or a utility? What would be the best way to go about this? The information I found online on this subject seems to only work for older versions of OpenFOAM.
Thanks!