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Floating Point Exception Error

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Old   August 22, 2014, 09:19
Default Floating Point Exception Error
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Shane
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I have been getting the same particular error ever since I've tried to run my mesh in Fluent.

Initially, i thought it was because of a bad mesh and I've tried to improve the quality of my mesh as much as possible but I am still getting the same floating point error. Even reducing the under relaxation factor does not help.

Would greatly appreciated if someone can give me some insights, I am truly lost as to what else to do.

This is the full error message;

# Divergence detected in AMG solver: x-momentum -> Increasing relaxation sweeps!

Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Primitive Error at Node 1: floating point exception

Primitive Error at Node 2: floating point exception

Primitive Error at Node 3: floating point exception

Primitive Error at Node 0: floating point exception

Error: floating point exception
Error Object: #f


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Old   August 22, 2014, 16:51
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şakir
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Hi!

I have same problem. Do you work parallel solver?
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Old   August 22, 2014, 21:38
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Yes I used parallel solver. I believe this has to do with my mesh having negative volume elements.
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Old   August 23, 2014, 03:10
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I haven't negative volume elements but i get same error. I think it is about parallel solver.
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Old   August 23, 2014, 05:28
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Have you been able to figure out the cause of this? It runs Ok in series?
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Old   August 23, 2014, 09:14
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I have 28 species and wall reactions. So i couldn't get serial solver.i only guess.
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Old   August 23, 2014, 23:38
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Is anyone able to help out with this issue?
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