CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

saving transient data for 1 point & 1 variable

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   December 7, 2005, 15:24
Default saving transient data for 1 point & 1 variable
  #1
REH
Guest
 
Posts: n/a
I would like to save the velocity data for a single node over a series of time steps so that I can take a FFT and find the frequency of oscillation using CFX 10.0. Can anyone help me with this?
  Reply With Quote

Old   December 7, 2005, 16:27
Default Re: saving transient data for 1 point & 1 variable
  #2
Rui
Guest
 
Posts: n/a
In Post, create a Chart. On the Chart tab select Type = Time, on the Chart Line tab select the Location (a Point that you have to already had created) and select the Variable. You'll get a graphic with the Variable values at the time instants available in Post. You may export the data.

If you want to have the data at every timestep, in Pre create a Monitor Point.

Regards,

Rui
  Reply With Quote

Old   December 7, 2005, 16:35
Default Re: saving transient data for 1 point & 1 variable
  #3
Mike
Guest
 
Posts: n/a
You could also create a Monitor Point for Velocity at the point of interest. Pull up the plot for the monitor point history in the Solver Manager, right-click on the plot and select "Export Plot Data". This will allow you to export a csv (comma separated value) file that Excel can open up. Mike

  Reply With Quote

Old   December 8, 2005, 03:19
Default Re: saving transient data for 1 point & 1 variable
  #4
TB
Guest
 
Posts: n/a
I'll create a monitor pt in post and export the data to a text file using command line in command window. I shouldn't be hard as post adopted PERL language.

Of course you can try Rui's method but I never like the way Post do the 2D graph....

  Reply With Quote

Old   December 8, 2005, 11:44
Default Re: saving transient data for 1 point & 1 variable
  #5
REH
Guest
 
Posts: n/a
Thanks for all the help, I was able to export the data.

RH
  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ensight gold transient data reading error cfd_addict EnSight 7 December 19, 2012 14:44
block-structured mesh for t-junction Robert@cfd ANSYS Meshing & Geometry 20 November 11, 2011 05:59
matching variable data with grid point data anfho OpenFOAM Programming & Development 0 May 6, 2011 15:28
save data output at specific point using probe foam_noob OpenFOAM 0 March 11, 2010 03:13
How to store transient data with various timestep? Oliver CFX 4 December 18, 2005 20:56


All times are GMT -4. The time now is 13:20.