How to change boundary condition from command

fluent87 · December 11, 2013, 07:15

Hallo to everybody!
Since I didn'd find this information, iI create this post to share with you my knowledge

My question was:
How to change boundary condition from command?

To change a bondary condition for example from wall to pressure outlet you have to write in command zone:
/define/boundary-condition/modify-zone/zone-type

after select teh id or the name of the boundary that you want to change, press "enter" and write the tyoe of the new boundary type (pressure outlet in the example)

After my other question was been:
Ok! It works! But how to set an UDF in the pressure outlet boundary from command?

The answer is simple. You have to write this command:
/define/boundary-condition/pressure-outlet
Now you have to answer to the question and select your UDF file, being careful to put the UDF file name between inverted commas (example "udf_name")

Enjoy!

Persil · December 11, 2013, 07:31

thx for sharing your knowledge

creating periodic bc is also possible by: mesh>modify/mp and entering the IDs of the corresponding zones

Zaktatir · December 11, 2013, 13:35

More details are in TUI Manual!

aneres · June 26, 2019, 11:44

Thank you for you help.
I have a more complex problem: if there are 4 udf, how to choose among them?

profile names list: ("udf" "udf" "udf" "udf")

If I wrote "udf", I received the error message from Fluent.
I'm trying to change the profile names bu I didn't find how to do this.

Does anyone have any suggestion?

Thank you!

AlexanderZ · June 26, 2019, 21:51

what is "profile names list"?

1. put all your UDF into 1 file, specify different names and recompile
or
2. rename compiled folders (udf1, udf2, ...)

best regards

aneres · June 27, 2019, 04:03

Thank you for your reply.

I already did it. I have 4 udf in one file each with its name. But fluent recognizes as "udf" all of them.

What do you mean with "rename compiled folders (udf1, udf2, ...)"?

Thank you in advance.

Best regards

AlexanderZ · June 27, 2019, 04:50

Quote:

I already did it. I have 4 udf in one file each with its name. But fluent recognizes as "udf" all of them.

it is impossible

best regards

aneres · June 27, 2019, 05:45

I solved the problem with the newest version that recognizes the udf name.

Thank you.

sadeghir97 · September 11, 2019, 14:27

Hello everyone, I have a problem with one inlet and about 100 outlets. What is the quickest way to define these outlets without manually doing it?

December 11, 2013, 07:15	How to change boundary condition from command	#1
fluent87 New Member Cristiano Join Date: Feb 2013 Posts: 11 Rep Power: 13	Hallo to everybody! Since I didn'd find this information, iI create this post to share with you my knowledge My question was: How to change boundary condition from command? To change a bondary condition for example from wall to pressure outlet you have to write in command zone: /define/boundary-condition/modify-zone/zone-type after select teh id or the name of the boundary that you want to change, press "enter" and write the tyoe of the new boundary type (pressure outlet in the example) After my other question was been: Ok! It works! But how to set an UDF in the pressure outlet boundary from command? The answer is simple. You have to write this command: /define/boundary-condition/pressure-outlet Now you have to answer to the question and select your UDF file, being careful to put the UDF file name between inverted commas (example "udf_name") Enjoy! H.D. likes this.

December 11, 2013, 13:35		#3
Zaktatir Senior Member Join Date: Jan 2010 Location: Germany Posts: 268 Rep Power: 17	More details are in TUI Manual! roteyl likes this.

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December 11, 2013, 07:31		#2
Persil Member Join Date: Nov 2013 Posts: 43 Rep Power: 13	thx for sharing your knowledge creating periodic bc is also possible by: mesh>modify/mp and entering the IDs of the corresponding zones

June 26, 2019, 11:44		#4
aneres New Member Join Date: Jul 2014 Posts: 4 Rep Power: 12	Thank you for you help. I have a more complex problem: if there are 4 udf, how to choose among them? profile names list: ("udf" "udf" "udf" "udf") If I wrote "udf", I received the error message from Fluent. I'm trying to change the profile names bu I didn't find how to do this. Does anyone have any suggestion? Thank you!

June 26, 2019, 21:51		#5
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	what is "profile names list"? 1. put all your UDF into 1 file, specify different names and recompile or 2. rename compiled folders (udf1, udf2, ...) best regards

June 27, 2019, 04:03		#6
aneres New Member Join Date: Jul 2014 Posts: 4 Rep Power: 12	Thank you for your reply. I already did it. I have 4 udf in one file each with its name. But fluent recognizes as "udf" all of them. What do you mean with "rename compiled folders (udf1, udf2, ...)"? Thank you in advance. Best regards

June 27, 2019, 05:45		#8
aneres New Member Join Date: Jul 2014 Posts: 4 Rep Power: 12	I solved the problem with the newest version that recognizes the udf name. Thank you.

September 11, 2019, 14:27		#9
sadeghir97 New Member Pablo Brown Join Date: Sep 2019 Posts: 3 Rep Power: 7	Hello everyone, I have a problem with one inlet and about 100 outlets. What is the quickest way to define these outlets without manually doing it?