How to modify postChannel in a way that it can be applied for a square channel

adambarfi · August 5, 2014, 07:27

hi everybody,

I wanna modify the postChannel utility in a way that I can use it for a square channel. one of the limitation of postChannel is that it assume that the mesh is periodic in the x and z directions. In my case, I have just a periodic condition in z direction. I wanna plot rms velocities on a line for example placed at x=0.1.

Here is the postChannel.C

my problem is that I know what to do but I don't know how to do!!!!!

Is anyone here who knows from where I should start and how can I modify this utility?

any hints or tips would be appreciated.

Regards,
Mostafa

Z.Q. Niu · November 27, 2014, 07:15

Hi，adambarfi. Have you got the way to modify postChannel to duct flow？

adambarfi · November 27, 2014, 07:28

hi Niu,

I couldn't do it, so I just left it and did the calculation by myself

Shahr · November 28, 2014, 04:56

Dear Adambarfi,

How did you do the calculation? I couldn't find a way to do it in Paraview.

adambarfi · November 28, 2014, 05:41

Quote:

Originally Posted by Shahr

Dear Adambarfi,

How did you do the calculation? I couldn't find a way to do it in Paraview.

I did it using a c++ code, I got the data using sample utility and then I calculated the rms velocities using that code

Shahr · November 28, 2014, 06:00

I can imagine how tedious running sample for each grid layer cross-section would be.

I guess such volume averaging can be done in Tecplot, but have no idea how. Have you tried Tecplot? or anybody else?

August 5, 2014, 07:27	How to modify postChannel in a way that it can be applied for a square channel	#1
adambarfi Senior Member Mostafa Mahmoudi Join Date: Jan 2012 Posts: 322 Rep Power: 15	hi everybody, I wanna modify the postChannel utility in a way that I can use it for a square channel. one of the limitation of postChannel is that it assume that the mesh is periodic in the x and z directions. In my case, I have just a periodic condition in z direction. I wanna plot rms velocities on a line for example placed at x=0.1. Here is the postChannel.C my problem is that I know what to do but I don't know how to do!!!!! Is anyone here who knows from where I should start and how can I modify this utility? any hints or tips would be appreciated. Regards, Mostafa

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Code for EARSM by Hellsten and RSM by Manceau, square duct, 2d turbulent channel	Thomas Baumann	OpenFOAM Running, Solving & CFD	14	October 16, 2020 04:11
[OpenFOAM.org] Compile OF 2.3 on Mac OS X .... the patch	gschaider	OpenFOAM Installation	225	August 25, 2015 19:43
transient motion of sphere in a square channel	sajeesh	FLUENT	0	March 4, 2013 10:15
How to make a UDF to have a velocity profile in a square channel	Gigis	Fluent UDF and Scheme Programming	8	January 13, 2013 22:20
Slug flow in square channel	PaulC	FLUENT	0	December 5, 2005 02:03

November 27, 2014, 07:15		#2
Z.Q. Niu Member Niu Join Date: Apr 2014 Posts: 55 Rep Power: 12	Hi，adambarfi. Have you got the way to modify postChannel to duct flow？

November 27, 2014, 07:28		#3
adambarfi Senior Member Mostafa Mahmoudi Join Date: Jan 2012 Posts: 322 Rep Power: 15	hi Niu, I couldn't do it, so I just left it and did the calculation by myself

November 28, 2014, 04:56		#4
Shahr New Member Join Date: Feb 2013 Posts: 21 Rep Power: 13	Dear Adambarfi, How did you do the calculation? I couldn't find a way to do it in Paraview.

November 28, 2014, 06:00		#6
Shahr New Member Join Date: Feb 2013 Posts: 21 Rep Power: 13	I can imagine how tedious running sample for each grid layer cross-section would be. I guess such volume averaging can be done in Tecplot, but have no idea how. Have you tried Tecplot? or anybody else?