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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Ignition doesn’t start with GRI-Mech for methane › Reply To: Ignition doesn’t start with GRI-Mech for methane

May 16, 2024 at 1:03 pm
Vijay Narayan
Ansys Employee

HI Felix,

If i understand correctly your FR(species transport case is working) whereas the non premixed model is not igniting as expected ?. Are you using the Equillbrium model or Steady diffusion flamelet model ? Not sure how patching a temp triggered reaction (this approach would have worked for the FR model but not for PDF/flamelet based models. You could also try the partially premixed model (FGM based) and patch the progress variable to trigger combustion.

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