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Convergence of species in reacting flow on fluent

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Old   May 6, 2018, 02:04
Default Convergence of species in reacting flow on fluent
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Esmaeil Jabbari
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Hi everybody

Please help me

I am trying to simulate combustion reaction in fluent
Residual of variables i. e, continuity, velocity, turbulence (k-epsilon), energy, radiation (DO), and species is good and acceptable but residual of 4 component (CO, O2, CH4 and H2) is around 0.01 and no convergence.

I attached fluent figure. Can anyone help me?
Is there a good way to control species residuals like as Multigrid type, solution method and etc?

Also i select second order for solution method.

Best Regard
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