CFX Particles

Jonathan Nebauer

Hey -

Running a simulation in CFX-11 where the flow becomes super-saturated and particle nucleation is predicted by CNT (classical nucleation theory). Growth then follows. I have written various UDF's to attempt at capturing the physics - latent heat transfer (phase change), particle growth etc. However - fundamentally this may not be possible using the CFX-pre and solver:

- No particle variables to track the particle's exposure, i.e. nucleated or not, what mode of growth.

- Return variables are 'bulk' fluid only - effect of the Lagrangian particle tracking;

- ...hence, particles do not (in real-time) influence the flow properties

- Changes in particle diameter are not up-datable

- unable to differentiate particles in the same mesh-cell

Hoping I'm wrong on all these counts...thoughts?

Cheers!

Jon