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Old   June 24, 2005, 11:33
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Hi,All I am using FLUENT Fuel Cell Toolbox to model a single PEM fuel cell stack.When I tried to initialize the model, I got the following error messages. Error: prf-set-var: invalid flonum Error Object: nan

Anyone knows how to solve the problem? Does that mean that I didn't specify all the required material properties correctly? I am desperate. Please help!

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Old   January 30, 2010, 03:52
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Philip Mprezas ( )
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what version did you use?
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Old   July 12, 2011, 19:25
Default Same issue
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I have the same problem when I modified a case in fluent 13.0 and tried to read it in Fluent 12.1.4. I checked the case file is good by opening it in Fluent 13 multiple times. But with Fluent 12.1.4, it gives the same error message:
"Error: %prf-set-var: invalid flonum"

Any clue whats going on?


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Old   July 7, 2013, 11:59
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Roberto Meloni
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Hi guys,
Did anyone fix this fluent bug?
I'm running a simulation on Ansys 13 of an internal combustion engine and when I try to load the .cas and .dat files saved every 15 time step, this error message appears.

Thanks in advance.
All the best.
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Old   May 17, 2014, 18:27
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Probably because of the different version of Fluent.
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