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How to model particle nucleation and growth and scalar consumption?

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Old   May 27, 2015, 17:50
Default How to model particle nucleation and growth and scalar consumption?
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Mike Foster
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I would like to model the nucleation and growth of particles based on Arrhenius equations. The Arrhenius equations would reference cell temperature and scalar concentrations. I have created an interCombinedFoam solver based on the interFoam solver. It includes two scalar equations and the energy equation. I have used swak4Foam with just a "plain" interFoam solver to try out some injection models.

Ideally:
I expect I'll be able to use swak4Foam with the interCombinedFoam solver. Then...
  • For nucleation, I could define a zone in which I would call evolveKinematicCloud > CellZoneInjection and be able to enter the Arrhenius equation for the massFlowRate, which would apply to each cell individually. (However, CellZoneInjection seems to be setup to inject all particles only at SOI; FieldActivateInjection looks promising but I wonder if it would inject on a cell-by-cell basis)
  • For growth, I could call something which would allow me to express the Arrhenius equation for particle growth.
  • For the consumption of scalars, I could alter the scalar concentrations in a given cell based on an Arrhenius equation.

I have been successful in modeling this in Fluent. It was necessary for me to write and attach a UDF to achieve nucleation, growth, and scalar consumption.

Thoughts on how to proceed?

(Note: I have only be able to get this far with the help of multiple posts in this forum. Therefore, thank you each for your help!)
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