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dealing with complicated chemistry with fluent

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Old   April 24, 2019, 20:40
Default dealing with complicated chemistry with fluent
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Weiqiang Liu
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Hi all,

I am doing a catalytic combustion of methane simulation with fluent. With surface mechanism only, I can reproduce literature results. However, when gas mechanism is included, problem occurs.

Attached are my residuals and monitored variable. The residuals are never decreasing and oscillating. So is the monitored variable, in specific, outlet temperature.

I am wondering any strategies to get converged results in fluent when dealing with complicated results or some settings of my model are wrong?

Please help.


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File Type: png residual.png (26.3 KB, 2 views)
File Type: png monitor.png (13.0 KB, 1 views)
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convergence, gas mechanism, surface mechanism

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