Mass Fraction in Multi-step reactions

- September 2, 2018 at 7:38 pm
  
  krany3
  Subscriber
  
  How to calculate mass fractions for individual species at the boundaries which are involved in multi-step reactions, especially in species transport?
- September 3, 2018 at 9:53 am
  
  DrAmine
  Ansys Employee
  
  Are you using wit CFX or Fluent or other solver? Generally the codes would discretize and solve convective-diffusive transport equations for mass fractions so that we do just need to know the values for the mass fractions / moles fraction at domain boundaries. Which information do you have and what do you want to do?
- September 4, 2018 at 2:01 am
  
  krany3
  Subscriber
  
  I'm using Fluent. I've the stoichiometric coefficients in the 2 step reaction mechanism. I've the initial temperature of the reactants at the inlet. What else do we need to calculate the mass fractions?
- September 4, 2018 at 9:23 am
  
  Rob
  Ansys Employee
  
  I'd suggest keeping the questions in one thread:
  
  https://forum.ansys.com/forums/topic/pre-mixed-combustion-using-finite-rate-eddy-dissipation-model/

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