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Combustion temperature

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Old   January 17, 2008, 02:05
Default I simulate the propane-air mix
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I simulate the propane-air mixtures combustion with XiFoam.
I'd like to simulate the laminar homogeneous flame propagation, so I set /constant/turbulenceProperties
turbulenceModel laminar;
turbulence off;
and set the initial pressure P=101300;
then simulated.
But the temperatures are less than 500K at any time.they're too low.I expect they're around 2000K.
Why?Could you give me some advice?
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Old   May 6, 2008, 04:00
Default What is ur initial boundary va
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Niels Nielsen
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linnemann will become famous soon enough
What is ur initial boundary value for the temperature. If the temperature is too low or you have no ignition-source the species will not burn.

So either set the initial value for the internal field to a temperature where you now it will burn e.g

"internalField uniform 2000;"

Or look into diselFoam how to add an ignition source.

PS. I do not do personal support, so please post in the forums.
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