[Georges Thomas]

Hello forever

trying to simulate the combustion (fuel=hydrogen) in an ICE using cfd converge 2.3 using the ECFM combustion model

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for the emmission of NOx, i select the extended zeldovitch nox model

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selecting ECFM combustion model, i see that the reaction mechanism is disappear

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but in laminar flamme setup and for all model (metghalchi, gulder and IFPEN metghalchi) i don't find the hydrogen H2 as fuel

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i try to choose the metghalchi model and a "user defined" as fuel , i find a several problems when i validate the case

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i don't understand whey converge ask about "CO2" and "CO" ?? because i don't need to add them in the species because i use hydrogen H2 as fuel?

the same question about the other species "bfuel" "unmixfuel" that converge write "required for ECFM3Z model"

??????????????

[SamWijey]

You cannot use ECFM with H2 as only HC fuels are supported currently with ECFM combustion model.

You can use SAGE detailed chemistry for H2 combustion.

Thanks,