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Old   September 13, 2005, 02:52
Default laminar premixed flame
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Paul Lee
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hi everyone

I want to simulate laminar premixed methane/air flame. but I don't know how to simulate it because i am a beginner. I have always looking for some related cases or tutorials in the internet, but I' ve got nothing till now. At the same time I try my best to simulate it by varing some parameters, but no result is shown.I really don't know how to do it. so I long for some helps now. for a tutorial or case , it is the best. can you help me?

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Old   September 14, 2005, 06:37
Default Re: laminar premixed flame
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matej
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Try to go through the tutorials with combustion or reactions to see how the setting of reactions is done. If you plan to use reactions from the database, you can choose them from the list of the reactions, if you plan to define your own, it is possible through expressions.

the general scheme is as follows: define material (like fuelAir) as reacting mixture,

define reactions from database, OR define scalars and reaction rates as Expressions and define the sources to scalars and enthalpy.

If you cannot get convergence, try Expert Parameter: "Stiff Chemistry = t"

good luck

matej
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