Export data in text file

Eferal · July 7, 2011, 09:50

Greetings every one,
I'm using Fluent and OpenFOAM now. The problem is : I'm working on a 3D case with a huge number of cells. I'm doing some POD and I would like to have the data for just a plane. I know how to export the whole data, but the problem is that it's too big to export the data for every point. I would like to be able to select just the point belonging to the plane (around 4000 points). Do you know if I should write a code in fluent or something to do it ?
Thanks in advance for any tips and advise
Antoine

Amir · July 7, 2011, 10:28

Hi,
you can create your face in fluent and then export desired data of this plane:
file->export
I proposed you to use tecplot format.

Regards,

Amir

Eferal · July 7, 2011, 11:51

Thank you Amir !
I forgot an important detail. I need this almost every time step. And that's actually the problem I have. I can record data for every timestep, but I can't chose the surface, it has to be the whole solid.

Amir · July 7, 2011, 15:11

I think that in FLUENT 13 you can export anything during unsteady solution but I'm not sure.
about your points, if they don't locate on a surface, you have to create discrete points and because of the large number of points, you have to use a journal file for automation.

Eferal · July 7, 2011, 16:48

That's true, it works on Fluent 13!
Thank you very much

alialemana · April 13, 2018, 10:33

Dear all,

I have a similar question, I would like to export the data not only from a plane but from a part of my geometry (it is a T-mixer and I would like the data of the outlet part).
Is there a possibility to define a "block" in FLUENT or should I define a part in ICEM CFD?

Thank you very much!

July 7, 2011, 09:50	Export data in text file	#1
Eferal New Member Antoine H. Join Date: Mar 2011 Posts: 13 Rep Power: 16	Greetings every one, I'm using Fluent and OpenFOAM now. The problem is : I'm working on a 3D case with a huge number of cells. I'm doing some POD and I would like to have the data for just a plane. I know how to export the whole data, but the problem is that it's too big to export the data for every point. I would like to be able to select just the point belonging to the plane (around 4000 points). Do you know if I should write a code in fluent or something to do it ? Thanks in advance for any tips and advise Antoine

April 13, 2018, 10:33	Export data from a part of geometry	#6
alialemana New Member Join Date: Jul 2017 Posts: 12 Rep Power: 9	Dear all, I have a similar question, I would like to export the data not only from a plane but from a part of my geometry (it is a T-mixer and I would like the data of the outlet part). Is there a possibility to define a "block" in FLUENT or should I define a part in ICEM CFD? Thank you very much!

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July 7, 2011, 10:28		#2
Amir Senior Member Amir Join Date: May 2009 Location: Montreal, QC Posts: 735 Blog Entries: 1 Rep Power: 23	Hi, you can create your face in fluent and then export desired data of this plane: file->export I proposed you to use tecplot format. Regards, Amir

July 7, 2011, 11:51		#3
Eferal New Member Antoine H. Join Date: Mar 2011 Posts: 13 Rep Power: 16	Thank you Amir ! I forgot an important detail. I need this almost every time step. And that's actually the problem I have. I can record data for every timestep, but I can't chose the surface, it has to be the whole solid.

July 7, 2011, 15:11		#4
Amir Senior Member Amir Join Date: May 2009 Location: Montreal, QC Posts: 735 Blog Entries: 1 Rep Power: 23	I think that in FLUENT 13 you can export anything during unsteady solution but I'm not sure. about your points, if they don't locate on a surface, you have to create discrete points and because of the large number of points, you have to use a journal file for automation.

July 7, 2011, 16:48		#5
Eferal New Member Antoine H. Join Date: Mar 2011 Posts: 13 Rep Power: 16	That's true, it works on Fluent 13! Thank you very much