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Old   August 6, 2008, 10:35
Default Hi! I'm working with OpenFOAM
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Claudio Feliciani
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Hi!
I'm working with OpenFOAM for a simulation of the liquid steel behaviour for a Twin Roll Casting maschine.
I succesfully created a mesh and added the necessary boundary conditions.

When I start the computation with interFoam after the second time-iteration a get an error message: "Floating point exception".
I searched with google the meaning of this error but there's not lot of documentation.

Could you please tell me which could be one of the possible reason that yield such an error message?

Thank you,
Claudio Feliciani
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Old   August 6, 2008, 11:36
Default Your solver blew up because of
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Hrvoje Jasak
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Your solver blew up because of an illegal mathematical operation, like division by zero. I would think this is to do with either your initial/boundary conditions or material properties. For example, having zero density would do something like this.

Enjoy,

Hrv
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Old   August 7, 2008, 08:20
Default I've solved the problem by set
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Claudio Feliciani
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I've solved the problem by setting:
unset FOAM_SIGFPE

Now the simulation is running and the results seem to be good. Actually I know what the command unset FOAM_SIGFPE (it tell OpenFOAM to not send the term signal to the CPU in case of an illegal operation, if I've not understand wrong), but what could be the risks by using that method to remove the "Floating point exception" problem?

The same topic were discussed in http://www.cfd-online.com/OpenFOAM_D...tml?1201770596 but no answer were finally given.

Thanks,
Claudio
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Old   December 21, 2010, 15:04
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N. A.
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Hi Claudio,

where do you "unste FOAM_SIGFPE". in etc/bashrc or some where else

Thanks,
Nir
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Old   December 22, 2010, 09:42
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David Boger
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Assuming you are using a bash shell, I would put it in your .bashrc
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Old   February 8, 2012, 02:02
Default Floating error
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Hello
i am having floating error :invalid number problem. I am working train in tunnel. Can any body help me. My email is sheikhnasir39@gmail.com
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Old   April 17, 2013, 04:43
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Claudio
I am doing LES of my geometry. In which dictionary do you put unset FOAM_SIGFPE. My dictionaries are what can be found in pitzDaily tutorial in pisoFOam. I shall be very grateful for your response.

Regards
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