Any expert in udf writing here?

coolengineer · April 22, 2009, 12:52

Hi everybody,

Although I am new user, I have been online everyday for over one week. But I cannot find answers to my problem. Anyone here experience in writing udfs?

I just need a critical touch.

Waiting from you.

coolengineer · April 22, 2009, 14:33

I thank mAx very much for his guidence through my problem!

-mAx- · April 23, 2009, 01:15

you're welcome.
Can you quick detail how do you solved your issue on your previous thread
http://www.cfd-online.com/Forums/flu...to-fluent.html
It can be helpfull for someone else

coolengineer · April 23, 2009, 04:21

When I attemped to hook my udf to Fluent, the following problem occured:

Creating library libudf.lib and object libudf.exp
my_herschel_bulkley.obj : error LNK2019: unresolved external symbol __imp__Cell_Strain_Rate_Mag referenced in function _my_herschel_bulkley
libudf.dll : fatal error LNK1120: 1 unresolved externals

As you can guess the problem was with my assignment the Cell_Strain_Rate_Mag to a symbol. I deleted assignment and instead I used Cell_Strain_Rate_Mag in the following definitions, then hooked the udf to Fluent and saw that it worked.

Thank you again mAx.

April 22, 2009, 12:52	Any expert in udf writing here?	#1
coolengineer New Member Jack nedermans Join Date: Mar 2009 Posts: 12 Rep Power: 17	Hi everybody, Although I am new user, I have been online everyday for over one week. But I cannot find answers to my problem. Anyone here experience in writing udfs? I just need a critical touch. Waiting from you.

April 22, 2009, 14:33	Thanks to mAx	#2
coolengineer New Member Jack nedermans Join Date: Mar 2009 Posts: 12 Rep Power: 17	I thank mAx very much for his guidence through my problem!

April 23, 2009, 01:15		#3
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you're welcome. Can you quick detail how do you solved your issue on your previous thread http://www.cfd-online.com/Forums/flu...to-fluent.html It can be helpfull for someone else __________________ In memory of my friend Hervé: CFD engineer & freerider

April 23, 2009, 04:21	How I solved my problem	#4
coolengineer New Member Jack nedermans Join Date: Mar 2009 Posts: 12 Rep Power: 17	When I attemped to hook my udf to Fluent, the following problem occured: Creating library libudf.lib and object libudf.exp my_herschel_bulkley.obj : error LNK2019: unresolved external symbol __imp__Cell_Strain_Rate_Mag referenced in function _my_herschel_bulkley libudf.dll : fatal error LNK1120: 1 unresolved externals As you can guess the problem was with my assignment the Cell_Strain_Rate_Mag to a symbol. I deleted assignment and instead I used Cell_Strain_Rate_Mag in the following definitions, then hooked the udf to Fluent and saw that it worked. Thank you again mAx.

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