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divergence in AMG:enthalpy

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Old   March 13, 2005, 21:23
Default divergence in AMG:enthalpy
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ernie
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Dear All,

I'm working on fixed bed gasifier, steady state. fuel inlet from the top, air from the bottom of combustor while the product gas leaves from the top also.

I used prePDF to define non-premixed. i model the solid fuel using group injection.

After some iteration, a message appeared" error: divergence in AMG solver: enthalpy". How to fix this problem and how does this actually happen?

I would like to hear any advice and suggestion from you,

Thank you

Regards, Ernie
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