Reacting Flows

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  3. What is the relation between the detailed chemistry calculation and the flame propagation model?

What is the relation between the detailed chemistry calculation and the flame propagation model?

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    • June 6, 2022 at 8:33 am
      FAQFAQ
      Participant

      ANSYS Forte’s SI engine capability employs both a flame-propagation model (using the G-equation approach) and detailed chemistry. The G-equation determines where the flame resides at each time step and a chemical-equilibrium assumption is used on the flame front. Everywhere else, detailed chemistry is employed. In this way, we can predict knocking from auto-ignition outside of the flame front (e.g., in the “end gas”) due to compression by the flame propagation. Forte’s G-Equation model accommodates multi-component fuels and is fully integrated with Forte’s detailed kinetics solvers.

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