For FLUENT 12 or 14, the command is:

define/user-defined/compiled-functions compile libudf yes sourcecode.c "" ""

define/user-defined/compiled-functions load libudf

you may need to add an additional blank line after this command to make sure it executes properly.

What type of HPC do you use?

For IBM Platform HPC you should run Fluent in Command Prompt, then compile your UDF.

For FLUENT 12 or 14, the command is:

define/user-defined/compiled-functions compile libudf yes sourcecode.c "" ""

define/user-defined/compiled-functions load libudf

you may need to add an additional blank line after this command to make sure it executes properly.

You use the variable in the drop box menu of fluent and combine all variable and name it.Then use that variable appearing in the variables to plot etc.

I have written UDF code for calculating velocity inlet, TKE and TDR at inlet.

When I run in HPC in parallel, I get error some error.

I have included this comment "#if !RP_HOST" in my udf

and my journal file is

/define/user-defined/interpreted-functions "/home/ijaz0001/july30/kepsilon.c" "cpp" 10000 no

/file/read-case "/home/ijaz0001/july30/july30.cas"

/file/auto-save/data-frequency 100

/solve/iterate 10000

/file/write-case-data "omega1_1_10000.cas"

exit yes

TOPICS

How can I compile or interpret more than one UDF in FLUENT journal file for running in HPC?

I have created 3 UDF codes I would like to intrepet in HPC.

define/user-defined/compiled-functions compile "libudf" yes "sourcecode1.c sorcecode2.c soucecode3.c " "" ""

is it the correct?

You have to put all your udf in a single ***.c file (not seperate c files) and interpret it 

In your journal file write like this

/define/user-defined/interpreted-functions "/***/home/aaa/bb/ddd.c" "cpp" 10000 no

Even though your placing  c file in the same folder, it is better to include full path.

I'm not sure about compiling, because for compiling you need SDK or Visual basics, So it is better to interpret....

I have a question: while I'm interpreting the UDF using this code in Linux, how do I define the specific inlet surface/zone at which this UDF is applied (for example, velocity inlet profile). Is it in the UDF source code itself?

Thanks,

Hossam

I recommend to follow the steps outlined in following link to compile your udf successfully. http://altayrd.blogfa.com/post/84