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partially premixed combustion with two oxidizers

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Old   January 13, 2020, 10:16
Default partially premixed combustion with two oxidizers
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SAM
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Dear all
I am planning to perform a combustion simulation with partially premixed combustion model with on fuel and two oxidizers. I was wondering how to define the first (f) and second (f_sec) mixture fraction and flame speed?
based on what I read from Fluent manual (https://www.afs.enea.it/project/nept...pdf-systems-ok), If I use (fuel/oxid_1) and (oxid_2/oxid_1) to calculate the flame speeds, it gives me zero values for flame speed for the secondary mixture fraction. I am sure this is not correct. Can anybody help me to define a correct combination of the streams?
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