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Old   May 19, 2008, 05:36
Default open_udf_library
  #1
Dennis
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Hi everyone,

I am using an UDF for creating a user-defined viscosity. It all worked fine till today. Due to hard-disc space I moved my working-folder to another partition. If I want to load the .cas file now, I always get the error: Openening library "libudf"... Primitive Error at Node 1: open_udf_library: No such file or directory

But the directory libudf was copied, too.

The strangest thing is now, when I now try to create the .cas-file from the .msh-file again, it's not possible to load the udf. Compiling the udf works, but when i try to load it I get the same error as before.

Does anyone have an idea how to fix this problem?

I am working on Linux with FLUENT 6.3

with kind regards Dennis
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Old   May 19, 2008, 05:52
Default Re: open_udf_library
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Padian
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You could try the following method:

Define->User Define->Function->Mange

Select original udf files and select remove

and then copy the .cas and yourudf.c to new location

compile again.

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Old   May 19, 2008, 06:06
Default Re: open_udf_library
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Dennis
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Tahnks for your response. Well the problem is I used "cut/copy" method to move the files to the other partition. So I don't have a Backup with the working file. And if I try to open the .cas-file in the new directory the open_udf_library error accurs and FLUENT freezes so that I can't remove the udf file

Greetings Dennis

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Old   May 19, 2008, 06:16
Default Re: open_udf_library
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Padian
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Maybe you could use "cut/copy" to move the files back to orinigial location.
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Old   May 19, 2008, 06:57
Default Re: open_udf_library
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Dennis
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I moved the files back to their original location, but even there the same error occurs.
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Old   May 19, 2008, 07:45
Default Re: open_udf_library
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Padian
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What about resetting where using udf files?

Maybe I'm a little confused about your problem

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Old   May 19, 2008, 07:59
Default Re: open_udf_library
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Dennis
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Well I am confused, too.

What do you mean with "resetting"?

I tried to build up the file again from the existing .msh-file. When I compile the UDF, I don't get an error. But when I try to load the UDF I get the "open_udf_library" error. So at the moment it is not possible to load the UDF to file in the new directory. So I don't understand why FLUENT has such a problem with this new directory
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Old   May 19, 2008, 08:04
Default Re: open_udf_library
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Padian
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firstly you should sure that the .cas file and your udf file are in the same folder

Secondly maybe you should set the enviornment variables
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Old   May 19, 2008, 08:11
Default Problem solved
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Dennis
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OK, I reassigned the working-directory from FLUENT and now its running.

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