How Fluent calculates heterogeneous reaction rate linked with population balance model?

- November 14, 2019 at 12:59 pm
  
  Amir
  Subscriber
  
  Hi all,
  
  I am working on crystallization via particle growth and am using population balance model (SMM) linked with Eulerian multiphase model.
  Primary phase is composed of solute (silica) and solvent (water) and the secondary phase has only silica solid crystals.
  
  What I am trying to solve is the following equation:
  
  Solute (aq) → crystal (s)
  
  And I wonder how Fluent calculate the rate of this heterogeneous reaction?
  I mean what is the equation behind reaction rate function when we select population-balance? (figure attached)
  
  Best,
  Amir
- November 14, 2019 at 1:39 pm
  
  Rob
  Ansys Employee
  
  Please repost the image: staff are not permitted to open/download attachments.
- November 14, 2019 at 1:42 pm
  
  Amir
  Subscriber
  
  Yes of course, sorry.
  
  " alt="" width="1050" height="420">
- November 15, 2019 at 5:44 pm
  
  DrAmine
  Ansys Employee
  
  The reaction rate is linked to the growth rate of the particles. Check manual for that link.
- November 18, 2019 at 8:23 am
  
  Amir
  Subscriber
  
  Thanks Amine,
  
  Best
- November 18, 2019 at 4:16 pm
  
  DrAmine
  Ansys Employee
  
  Welc9me
- December 6, 2019 at 3:37 am
  
  Manjunath
  Subscriber
  
  Hello Amir,
  
  Wonder if your phase-2 is a SINGLE species ? That's what it seems looking at your Heterogeneous Reaction screenshot.
  
  I believe, EVEN THEN it needs to be defined as a "Mixture" with that ONE species in it ... So that the Reaction "form" would
  
  allow you to select it. This is from our recent experience with a similar problem...
  
  Thanks,
  
  Manjunath

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