[nmontalbetti]

Hello, I'm having trouble defining a volumetric reaction function while using the multiphase model.

Accoding to Fluent's User's Guide, the proper way of defining a reaction while using the VOF multiphase model is to do it through "Phase Interactions". However, when I enter the "Phase Interactions" tab and select "Reactions", I can define the reactants and products, but I can't choose a Reaction Rate Function, the only option is "none".

The only models turned on in this simulation are the multiphase model and the species model. I'm modelling a microreactor and I've already ran simulations with just the VOF model activated with no problems.

This problem has occured both in Fluent 18.2 and 20.2.

[kevinllll]

I simulate multiphase flow reaction by VOF model in Fluent.The first phase is liquid phase and the second phase is a gas mixture.Mass transfer defines that the liquid phase evaporates into gas, and the gas reacts with oxygen.I open species model>>species transport>>volumetric reaction to define reaction in gas mixture.But the calculations diverge at once.In multiphase>>phase interaction>>Heterogeneous Reactions，the volume reaction in the gas phase can also be defined here.I don't know if I set the reaction in the wrong place