Fluids

Fluids

Mass Fraction in Multi-step reactions

    • krany3
      Subscriber

      How to calculate mass fractions for individual species at the boundaries which are involved in multi-step reactions, especially in species transport?

    • 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?

    • 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?

    • 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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