Printing at each iteration using udf

Shaik Raheem · August 2, 2023, 10:32

Hi all,

I want to print the variables(pressure, temp, etc.) in fluent at each iteration using udf. what is the Macro used for it?

help me..

MKuhn · August 4, 2023, 04:41

Why do you want to you use a marco for that? There are serveral possibilities in the GUI to do this. Your can print the values to the screen and/or store in a file.

Shaik Raheem · August 4, 2023, 06:30

Quote:

Originally Posted by MKuhn

Why do you want to you use a marco for that? There are serveral possibilities in the GUI to do this. Your can print the values to the screen and/or store in a file.

Thank you for the reply
Actually i am dealing with transient flow. I am using udf for adding source terms to mass and energy equations. In each time step, after several iterations solution will be converged. I am getting the variables printed in a text file after every time step. But i wanted to see at every iteration. I came to know that we can use DEFINE_ADJUST macro.

MKuhn · August 4, 2023, 08:00

I think, that you can change in the report definition the output intervall from flowtime to iteration.
Sorry, I can't give you a quick solution to do this in a UDF.

Shaik Raheem · August 4, 2023, 08:06

Quote:

Originally Posted by MKuhn

I think, that you can change in the report definition the output intervall from flowtime to iteration.
Sorry, I can't give you a quick solution to do this in a UDF.

OK.... I don't know that we can print in the report for every iteration. Thank you .. i did with udf today.. i will look at report definition also.

Have a good day

Shaik Raheem · August 4, 2023, 08:17

Quote:

Originally Posted by MKuhn

I think, that you can change in the report definition the output intervall from flowtime to iteration.
Sorry, I can't give you a quick solution to do this in a UDF.

could you please tell me how to do that in report definition?

MKuhn · August 4, 2023, 08:19

I'm not on my PC with FLUENT. Sorry you have to check the user guide.

Shaik Raheem · August 4, 2023, 08:21

Quote:

Originally Posted by MKuhn

I'm not on my PC with FLUENT. Sorry you have to check the user guide.

Ok. I will check

August 2, 2023, 10:32	Printing at each iteration using udf	#1
Shaik Raheem New Member Shaik Raheem Join Date: Jul 2023 Posts: 10 Rep Power: 2	Hi all, I want to print the variables(pressure, temp, etc.) in fluent at each iteration using udf. what is the Macro used for it? help me..

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August 4, 2023, 04:41		#2
MKuhn Senior Member Moritz Kuhn Join Date: Apr 2010 Location: Germany, Dresden Posts: 207 Rep Power: 17	Why do you want to you use a marco for that? There are serveral possibilities in the GUI to do this. Your can print the values to the screen and/or store in a file.

August 4, 2023, 08:00		#4
MKuhn Senior Member Moritz Kuhn Join Date: Apr 2010 Location: Germany, Dresden Posts: 207 Rep Power: 17	I think, that you can change in the report definition the output intervall from flowtime to iteration. Sorry, I can't give you a quick solution to do this in a UDF.

August 4, 2023, 08:19		#7
MKuhn Senior Member Moritz Kuhn Join Date: Apr 2010 Location: Germany, Dresden Posts: 207 Rep Power: 17	I'm not on my PC with FLUENT. Sorry you have to check the user guide.