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Problem with Finite Rate in Combustion Modeling

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Old   August 30, 2017, 05:43
Default Problem with Finite Rate in Combustion Modeling
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mengke zhan
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Hi guys!

I am having some issues regarding using the finite rate method in combustion modeling.

I am modeling a simple laminar premixed combustion case between propane and air (single step chemistry). I have the inlet boundary condition with 0.2m/s and stoichiometric mixture of propane and air. However, after patching the convergent cold non-reacting flow at 3000k near the inlet and run it under the finite-rate model. The temperature returns back to 300k soon after. I have also tried patching the reactants, too and it does not work, either.

I also tried a turbulent case with velocity 10m/s. The EDM method works while the finite rate method still gives extinguishing results.

I am wondering what might be the problem here.

Thanks!!!
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Old   March 8, 2021, 14:09
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el tneen
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hi Mengke

i am having the same problem ,did you have solution for it ?,thanks in advance
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combustion, edm, finite rate, laminar

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