Coupling Wall Surface Reactions and Multicomponent Particle Reactions

[yclc.liu]

Hi all,

I’m using 2024 R2 Fluent (Species Transport + DPM / Lagrangian Wall Film) to model heterogeneous reactions involving gas/liquid/solid species. Right now my model works when I use the pair of materials: Mixture material (in Species Transport) + Particle mixture (in DPM/LWF), which allows me to enable Multicomponent Particle Reactions.

However, based on my needs, some reactions should be Wall Surface Reactions instead of particle reactions. The problem is: as soon as I switch any one reaction to a wall surface/wall film reaction, the model no longer converges and quickly crashes.

My question: What is the correct way (or required settings/workflow) to enable Wall Surface Reactions and Multicomponent Particle Reactions at the same time in Fluent?
Are there any known limitations or recommended approaches for coupling these two reaction types?

Thanks!