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define wall functions (UDF) in Fluent 6.3

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Old   March 11, 2008, 13:32
Default define wall functions (UDF) in Fluent 6.3
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Alex
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Hello all,

I have been trying the example of DEFINE_WALL_FUNCTIONS in the Fluent 6.3 UDF manual (paragraph 2.3.23), but it doesn't seem to compile in Fluent. What I get in the log report is the following:

udf_names.c:8: error: 'user_log_law' undeclared here (not in a function)

udf_names.c:8: error: 'UDF_TYPE_WALL_FUNCTIONS' undeclared here (not in a function)

Could it be the case that I need to give some additional details in the UDF script?

Alex
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Old   March 24, 2008, 04:39
Default Re: define wall functions (UDF) in Fluent 6.3
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Dave S
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Before compiling the UDF in Fluent you need to start Fluent in a C++ DOS window.
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Old   March 24, 2008, 08:15
Default Re: define wall functions (UDF) in Fluent 6.3
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Alex
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Thanks for your reply,

I figured out what was the problem. I was using the udf.h file from the previous version (6.2) so I updated the new one.

Alex.

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Old   September 20, 2014, 12:37
Default meaning of DUPLUS AND D2PLUS
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m zahid is on a distinguished road
hi,

anybody know the meaning of DUPLUS and D2PLUS. these terms are used in UDF wall function example and also why the equation of both terms are different,

thanks
zahid
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