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Modeling SI engine with reactingFoam

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Old   November 9, 2015, 17:03
Default Modeling SI engine with reactingFoam
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Jack
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Hi all,
I'm trying to model premixed, natural gas SI combustion in a simplified cylinder geometry and looking for some general wisdom from someone who's gone there before. Here's where I'm at so far:

I'd like to eventually run simulations with a large reaction mechanism, so I started out with the reactingFoam tutorial case and introduced engine motion components from the engineFoam solver to simulate piston motion. The plan is to use fvOptions to inject energy (a rise in h) for the ignition source, but I haven't gotten that working yet.

There's a problem somewhere in the combustion model I'm using (laminar<psiChemistryCombustion>) that's causing autoignition way earlier than expected but before I try to track down that but I'm wondering is there anyone out there who's done this before or knows a better way to simulate an IC engine with detailed chemical kinetics? Are there any obvious faults in my approach that I'm missing?

Thanks in advance.
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