time average streamline in CFD post

eng_norouzi · January 13, 2016, 23:40

Hi,
Is it possible to draw the streamlines based on the time average velocity field?
(I have activated the transient statistics in output control in CFX and I can view the time average velocity contours in CFD post but streamlines only exist for standard velocity field).
thanks for your attention,

ghorrocks · January 14, 2016, 01:50

The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

eng_norouzi · January 14, 2016, 02:03

Thank you very much Glenn, I found it.

MvdB · October 1, 2016, 09:48

Quote:

Originally Posted by ghorrocks

The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

Hi all, I am new to the forum. I used Fluent to analyse the flow over a rotating cylinder. I used data sampling for time statistics and created cfd-post compatible output files. I now want to create streamlines of the time averaged velocity field. The Velocity.Trnavg variable is available in CFD-post, but it is not possible to select it as a variable for the streamlines. The vector field for streamlines are only: relative velocity, velocity, velocity in stn frame and wall shear. Any idea on how to compute the streamlines of the time-averaged velocity field?

phamminhngoc · October 23, 2019, 01:42

Hello guys, I'm using dynamic mesh to simulate the sailboat in calm sea. But I can not make streamline pattern, someone can help me.[IMG]C:\Users\pmn5d\Desktop[/IMG]

Gert-Jan · October 23, 2019, 03:03

Your question has nothing to do with Time average streamlines. So, why do you pick up an old query? Why don't you make a new one?

Then........ what kind of streamlines do you expect? Are you convinced this is wrong? If so, why?

ardourmaker · July 21, 2022, 02:16

Quote:

Originally Posted by MvdB

Hi all, I am new to the forum. I used Fluent to analyse the flow over a rotating cylinder. I used data sampling for time statistics and created cfd-post compatible output files. I now want to create streamlines of the time averaged velocity field. The Velocity.Trnavg variable is available in CFD-post, but it is not possible to select it as a variable for the streamlines. The vector field for streamlines are only: relative velocity, velocity, velocity in stn frame and wall shear. Any idea on how to compute the streamlines of the time-averaged velocity field?

Hello, MvdB.
Did you find the way to do this?
If yes, may I ask how to do it?
thank a lots!

January 13, 2016, 23:40	time average streamline in CFD post	#1
eng_norouzi Member ali Join Date: Feb 2011 Posts: 37 Rep Power: 15	Hi, Is it possible to draw the streamlines based on the time average velocity field? (I have activated the transient statistics in output control in CFX and I can view the time average velocity contours in CFD post but streamlines only exist for standard velocity field). thanks for your attention,

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January 14, 2016, 01:50		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

January 14, 2016, 02:03		#3
eng_norouzi Member ali Join Date: Feb 2011 Posts: 37 Rep Power: 15	Thank you very much Glenn, I found it.

October 23, 2019, 03:03		#6
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	Your question has nothing to do with Time average streamlines. So, why do you pick up an old query? Why don't you make a new one? Then........ what kind of streamlines do you expect? Are you convinced this is wrong? If so, why?