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Eddy dissipation model combustion flame temp much higher than theoritical

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Old   October 20, 2016, 18:07
Default Eddy dissipation model combustion flame temp much higher than theoritical
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shaman
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Critical assistance required
I am running boiler furnaces model.
Hydrocarbon fuel is combi of methane.. ethane ..propane..and butane and 57% volume of hidrogen.
Single fluid Reaction mixture using nasa polynomial.
Singlestep Eddy dissipation model.
Flame temp limited to 1900c.
All other values default.
I m seeing temp up to 4500c...
Model adapts cfx can combustor tutorial
Anyone especially expert comb users care to assist
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Old   October 20, 2016, 18:11
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Also how to calculate the energy released in this multi domain system.
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Old   October 20, 2016, 20:44
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Will switching to finite rate model- edm help....
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Old   October 20, 2016, 20:50
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I only have co2 ..no..h20 and n2 as product due to the species list chosen...
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Old   October 20, 2016, 20:51
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Another puzzle is for this steady state analysis the temperature seems to propagate throughout d
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Old   October 20, 2016, 20:52
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.... the domain around 2300 c
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