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Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

How is the diffusion coefficient defined

    • Stemphanie_anansu
      Subscriber
       
      I need to set the diffusion coefficient of oxygen in carbon dioxide in oxygen-enriched combustion, and I didn't find a way to set it.
      Please kindly help me
      Detailed steps would be great!
      Thanks for your help.
    • Rob
      Forum Moderator

      It's in the Species>Mixture panel. 

      • Stemphanie_anansu
        Subscriber

        hi

        thanks for your help

        But I didn't find this option in either panel (create/edit material→mixture and species model→species transport)

        Can you give more help? Thanks a lot!

         

         

    • Rob
      Forum Moderator

      Turn on species transport first, then it should be in the Mixture-thread species panel. Mass diffusivity at the bottom. 

      • Stemphanie_anansu
        Subscriber

        Thank you very much

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