Learning Forum

[liliana.lxa]

I would like to implement additional transport equations and source terms in ANSYS Fluent, according to the picture below:

This is related to this paper: https://www.sciencedirect.com/science/article/abs/pii/S1359431117302983
My goal is to reproduce this.

I believe equations 4 and 5 should be defined by UDS, and the source terms (in blue) of equations 1, 2 and 3 should be defined by UDFs.

I am struggling on how to implement equation 13, because this parameter "r" is defined by the user (is not a variable available on the code).

Does anyone has any idea on how to define this radius (r)? Would it be another scalar (UDS) in the code?

[Rob]

Given 13) is dr/dt I'd guess r is radius. That would be a value returned by Fluent for use in your maths. 

This level of assistance is beyond what we can cover in public (ie the Forum) but others are welcome to contribute. 

What I can suggest is reading the phase interaction options. You'll have a liquid carrier phase and then need to review how to move mass from that phase (species or otherwise) into various granular phases. Start with the Eulerian model in Fluent. Then possibly do more reading on the Population Balance Model.