Custom Drag Model in MP-PIC

MFiX How to
#1

User defined Drag models (UDF) | how to?

So for a simulation of the NETL Challenge problem riser that I am working on. I am using the default Gidaspow drag model, and I want to use a custom drag model
(EMMS-based) as shown below

image
image884×290 41.3 KB

The original paper is attached as well : its the EMMSYang2004 model: https://pubs.acs.org/doi/abs/10.1021/ie049773c

I was wondering what are the simple steps to include this drag model into MFIX.

I have attached the MFIX file and the STL file as well

geometry_0001.stl (5.6 MB)
own_STL_file.mfx (19.8 KB)
geometry_0001.stl (5.6 MB)

#2

use usr_drag.f to implement the user defined drag mode, and then select “user provided” in the drag model panel.

#3

Thanks for the comment. I got it resolved!