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stoichiometric proportion mismatch

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Old   October 30, 2007, 04:32
Default stoichiometric proportion mismatch
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frank lee
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hi everyone. i encounter a problem when i am trying to simulate a unsteady combustion process in a industial furnace. i start with a steady computation,and the result is receptable. however, when i turn to the unsteady computation, it seems that the stoichiometric proportion doesn't match what i set before.the mole concentration of oxygen is almost 0,but i have set excess air coefficient to 1.1. can anybody help with this problem?

best regards.

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