CFD modelling for stockpile

MFiX How to
#1

I want to do DEM modeling for stockpile emissions but I don’t know how to how to make a conical pile with particles.

#2

You can specify the initial particle positions in a particle_input.dat file. I’d suggest using Python for this.
You can write a script to produce the data file.

Here’s the relevant section of the MFiX manual:

https://mfix.netl.doe.gov/doc/mfix/22.2/html/tutorials/tutorial_dem_seeding.html#reading-initial-particle-data-from-a-text-file

You could also let the particles pile up into a stack by dropping them from an inlet above, but I’m not sure this will create the conical pile that you want. Some experimentation is called for.

#3

I have created a pile but now i wat to blow wind from one side to see how particles escape form pile ? can you suggest how to do it?

#4

Put your pile in a box, set one side of the box with a boundary condition (BC) that mimics the wind, set all the other BCs with pressure outlets?