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Old   June 24, 2005, 12:33
Default FLUENT FUEL CELL MODEL
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BC
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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!

BC
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Old   January 30, 2010, 03:52
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Philip Mprezas ( f.mprezas@yahoo.gr )
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what version did you use?
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Old   July 12, 2011, 20:25
Default Same issue
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Shrinivas
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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?

Thanks.

Shrinivas
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Old   July 7, 2013, 12:59
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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.
Rob.
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Old   May 17, 2014, 19:27
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YuHuo
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Probably because of the different version of Fluent.
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Old   November 22, 2016, 02:23
Default cylinder
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sanju
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I too have the same problem.

I just considered the cylinder and given inlet velocity at one side and outlet pressure at the other side.
1. defined the surfaces as the temperature body
2. inlet air velocity 8 m/s.
3. trying to find the cooling response of the system.

In cell zone BC
when I define cylinder as fluid then there was no error, but I defined it as solid the error was showing as below

Error - %prf-set-var: invalid flonum
Error object - 1.£ inf

Kindly anyone suggest what is the problem.

Thanks in advance.
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Old   November 22, 2016, 02:24
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sanju
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I am working in ANSYS Fluent 15 version
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