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temperature problem with non-premixed combustion

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Old   June 4, 2008, 08:28
Default temperature problem with non-premixed combustion
  #1
vic yang
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Hello all.i simulate gas combustion using the PDF mixture fraction model,DO radiation model(fluent 6.3). i got a converged result, but the temperatue is about 200K higher than the normal situation. i checked the grid and the models, i dont know why this happen. please help me, thank you very much!

sincerely
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Old   June 4, 2008, 23:11
Default Re: temperature problem with non-premixed combusti
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Kolam
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Hi vic yang,

I am also working in non premixed combustion only, please can u tell me what is PDF means in non premixed combustion, for me its is showing PDF20, please clear my doubt......

With regards, Kolam
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Old   June 5, 2008, 00:14
Default Re: temperature problem with non-premixed combusti
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vic yang
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Hello Kolam,

As for the PDF mixture fraction model, you can see the help of fluent. As far as I know, the PDF20 you said maybe mean that there are 20 species in your PDF-mixture.Good luck.

Sincerely, Vic
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Old   June 5, 2008, 00:50
Default Re: temperature problem with non-premixed combusti
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Kolam
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Hi Vic,

Thanks for ur reply...

By, Kolam
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