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Divergence detected in AMG solver for temperature and species , DEFINE_VR_RATE,Fluent

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Old   November 18, 2020, 07:29
Default Divergence detected in AMG solver for temperature and species , DEFINE_VR_RATE,Fluent
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AJITH
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In 2D Model, Reaction in porous Zone, Error occurs on hooking UDF ,
DEFINE_VR_RATE in Fluent, The error spikes just after running calculation, 1st iteration itself.

Divergence detected in AMG Solver:TEMPERATURE
Divergence detected in AMG solver species 0
and Divergence detected in AMG solver species 1...2..3..4
Floating point exception error object #f


Any solution for this, Anyone come across such a situation in using UDF in FLuent?
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define vr_rate, porous domain, reaction rate

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