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

storing variable value at a particular point

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 19, 2006, 05:41
Default storing variable value at a particular point
  #1
prabhu
Guest
 
Posts: n/a
Hi, How can we store a variable value for a particular point in the domain, at different time steps? The CFX-Pre stores the variable values for all points.

Thanks
  Reply With Quote

Old   June 19, 2006, 07:14
Default Re: storing variable value at a particular point
  #2
Joe
Guest
 
Posts: n/a
User fortran. Create your own variables. Read the "Memory management" section of the manual.
  Reply With Quote

Old   June 19, 2006, 08:37
Default Re: storing variable value at a particular point
  #3
Robin
Guest
 
Posts: n/a
What exactly are you trying to do?
  Reply With Quote

Old   June 19, 2006, 23:33
Default Re: storing variable value at a particular point
  #4
prabhu
Guest
 
Posts: n/a
I have to store the values of pressure and velocity, only at a point (monitor point) on the axis at the inlet of a nozzle for each timestep. So that i can plot the variables with respect to time. I think that values at monitor points(created) will not be stored for post processing. Values are stored for the whole domain and it amounts to lot of memory.

  Reply With Quote

Old   June 20, 2006, 19:50
Default Re: storing variable value at a particular point
  #5
Robin
Guest
 
Posts: n/a
Values at monitor points are stored to the MON file at every iteration. At the end of the run, the mon file is embedded into the res file (which is in fact an archive). When you open the RES file in the Solver Manager, it plots the contents of the MON file.

So... create your monitor point and monitor the data you are interested in. After the run has finished, right click on the plot in the Solver Manager and you can output your data to a .csv file.

Just keep in mind that if you do not include the trn files and you see something interesting in the monitor data, you will not be able to go back and view the results at those timesteps. At the very least, I recommend calculating transient statistics.

Regards, Robin
  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
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 07:36
Problem in installation of OpenFOAM sachin OpenFOAM Installation 7 January 22, 2008 02:40
Problems with additional variable Krishna Premi CFX 1 October 29, 2007 09:19
Multi_component Vs Additional Variable Anurag CFX 2 February 4, 2005 17:45
Replace periodic by inlet-outlet pair lego CFX 3 November 5, 2002 21:09


All times are GMT -4. The time now is 09:49.