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Reacting Flows

Reacting Flows

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  3. What effect does turning on Diffusion Energy Source have?

What effect does turning on Diffusion Energy Source have?

Tagged: 17, fluent, fluid-dynamics, Modeling/Setup Advice, Species/Reactions
    • August 25, 2023 at 12:15 pm
      FAQFAQ
      Participant

      When solving for chemical species transport, the effect of enthalpy transport due to species diffusion can be included in the energy equation. If using the pressure-based solver, this option can be enabled by opening the Species Model panel and clicking the Diffusion Energy Source checkbox. In the density-based solver, this term is always included in the energy equation. In particular, when the Lewis number is much larger than 1 in any of the species, it may lead to large errors if this term is ignored. Related Documentation ANSYS FLUENT 17.0 Theory Guide – 5.2.1 Heat Transfer Theory ANSYS FLUENT 12.0 Theory Guide – 7.1.1 Species Transport Equation

      Attachments:
      1. 2042848.pdf

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