CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > SU2

LES post processing in SU2 - statistically steady state

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 1, 2023, 10:51
Default LES post processing in SU2 - statistically steady state
  #1
New Member
 
Dónal McCaughey
Join Date: Sep 2021
Posts: 9
Rep Power: 4
Dónal is on a distinguished road
I have an LES simulation running that I restarted from well converged RANS results. I have run for five flowthroughs as per rule of thumb and am now trying to determine if I have reached or am at least approaching a statistically steady state.

I have one area of the flow which is of key interest where I would like to monitor the momentum at several points, and use this output to determine if I'm approaching a statistically steady state.

At the minute I have been just ouputting tecplot flow files and processing these in tecplot, but these requires a lot of storage for a few small calculations (each file is ~10gb and I would like to look at 100s of time steps). If I could just output some variables at a few points to the history file this would be much more convenient. The area I'm interested in is far from any walls so properties calculated at surfaces aren't really useful

Using CUSTOM_OUTPUTS seems like it could work but I can't work out from the template example (https://github.com/su2code/SU2/blob/..._flatplate.cfg) how to just output momentum (or another property) at some specified points to the history file from this.

If anyone can help me with this, or suggest a better approach it would be greatly appreciated

Also, would it be better to use an integral property for this analysis?
Dónal is offline   Reply With Quote

Old   February 1, 2023, 17:40
Default
  #2
Senior Member
 
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 499
Rep Power: 17
bigfootedrockmidget is on a distinguished road
A similar question on monitoring points was raised a short while ago, this is my solution:


Monitoring/Sampling points
bigfootedrockmidget is offline   Reply With Quote

Reply

Tags
les, post processing, su2, tecplot

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Domain Reference Pressure and mass flow inlet boundary AdidaKK CFX 75 August 20, 2018 05:37
Convergence in steady state simulations vs transient ones cardioCFD CFX 5 January 21, 2018 10:59
NO model vs post processing in coal combustion,CFX sakalido CFX 1 April 15, 2011 14:07
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
LES post processing moun FLUENT 0 April 23, 2005 10:30


All times are GMT -4. The time now is 15:02.