The MFix DEM simulation is pure granular flow of solid particles. I am calculating the mass flow rate at the plane using mass flow rate monitoring. I got average mass flow rate of 0.001002kg/s at steady state from 0.2s to 0.8s.
I want to verify this mass flow rate in paraview. How should I do?
My approach:
In paraview, I created the same plane by clip and exported the .csv file containing particle IDs. I counted the particles at 0.8s by counting the particle IDs. Basically, I removed the duplicate particleIDs and counted the remaining. I got 5785 total number of particleIDs which passed through the plane at 0.8s. The total mass calculated for these number of particles is 0.000595kg. Then mass flow rate is calculated by dividing with 0.8s and is found as 0.000744kg/s. The calculated mass flow rate by counting the number of particles passed through this plane has significant difference from the average mass flow rate monitoring at steady state in Mfix DEM.
What is the method of verifying in right way in paraview and why there is significant difference?