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Partially premixed model: Divergence

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Old   October 7, 2011, 12:30
Default Partially premixed model: Divergence
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I am trying to do combustion analysis of a gasoline engine at octane lower than regular gasoline (which i assume as 90). The cases with octane numbers of 87 and 85 diverged giving: "Divergence detected in AMG solver: pressure correction". All the parameters were kept same from the 90 octane case which ran smoothly and gave me predicted results. Can anyone address this issue.
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