Hi, I am trying to model gas/solid multiphase granular flow with chemical reactions in Fluent. The solid phase is FCC catalyst together with the coke (hydrogen + carbon) deposited on its surface and the gas phase is oxygen. But I have some problems. 1. When modeling this, should I use both species transport and heterogeneous reactions in multiphase interaction module? 2. How to define solid phase in the materials section as FCC catalyst (granular) together with the coke (hydrogen + carbon) deposited on its surface? Thanks...
Dear Ahmet Erdogan ,
To answer your Question1- We can define both gas and solid-phase reaction in fluent by including these available modules in the dialogue box, but I am not sure of any option in fluent for porous media. Hence you need to write a UDF for solid-phase consumption. To answer your question 2, for this kind of problem, you need to define a porous media with suitable permeability and porosity. Also, special care for deposited coke should be taken care by ensuring the condition of mass transfer (coke gasification/combustion) using UDF. Check any standard work on reaction in porous media. It will be helpful.
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