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Old   July 24, 2003, 14:32
Default non-premixed combustion
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KE
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I built a nonpremixed combustion model using Fluent, but the temperaure is very high (2850K) which is not I expected.

And how to include the Buoyancy effect into the simulation?

Your suggestions are welcomed!

Thanks
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Old   July 25, 2003, 05:36
Default Re: non-premixed combustion
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Erwin
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If you're using a pdf model make sure it is non-adiabatic.

For buoyancy, click 'gravity' in the operating conditions panel and change z-parameter to -9.18 m/s2.
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Old   July 25, 2003, 14:38
Default Re: non-premixed combustion
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KE
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Thank you for your suggestion. But in the menu, non-precmixed combustion could be modeled either by "pdf" or "species transport". This time I will try "pdf"to see the effect.

Thanks!
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Old   July 28, 2003, 07:55
Default Re: non-premixed combustion
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Erwin
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If you used species transport, don't forget to include radiation to get rid of all that heat.
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