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

Su2 - les

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 6, 2023, 10:21
Default Su2 - les
  #1
New Member
 
Join Date: Nov 2023
Posts: 1
Rep Power: 0
rob777 is on a distinguished road
Dear All,

could you please inform me about a method (if any exists) to run a LES with SU2?

Thank you
rob777 is offline   Reply With Quote

Old   November 6, 2023, 13:17
Default
  #2
Senior Member
 
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 529
Rep Power: 17
bigfootedrockmidget is on a distinguished road
Hi,

Unfortunately there are currently no tutorials for LES. All configuration options are described in the file config_template.cfg and a quick search shows that these are probably the most important ones:
Code:
SOLVER= FEM_LES
KIND_SGS_MODEL= VREMAN
I am not so familiar with setting up an LES, I hope somebody else can add any missing info or hints.
bigfootedrockmidget is offline   Reply With Quote

Old   November 6, 2023, 18:46
Default
  #3
New Member
 
A Roy
Join Date: Sep 2022
Posts: 15
Rep Power: 3
A.Roy is on a distinguished road
Hi Rob,

i don't claim to be an expert in LES (and especially not LES in SU2, I am wading through some DDES and hybrid RANS/LES stuff myself), but I'm linking below a SU2 conference slideshow with some commentary and results on general WMLES and DDES, but importantly for trying to learn how to run the cases, some settings and mesh guidelines also (particularly on slides 6 and 11).

While it discusses WMLES (and thus utilizes wall functions), I assume more deliberate mesh refinement and removal of the wall function setting would get closer to WRLES if that is what is required.

https://su2foundation.org/wp-content.../06/Molina.pdf

Apologies; you may already have this knowledge as you're asking about LES in the first place, but if anyone else browsing this is interested, I'm also linking a DLR paper on 2D RANS vs. Hybrid RANS/LES vs. WRLES for mesh and timestep guidance.

https://elib.dlr.de/136427/1/ELIB-Ei...rPublished.pdf
A.Roy is offline   Reply With Quote

Reply

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
Sajben Transonic Diffuser Benchmark: RANS is great, struggling with LES CSMDakota SU2 5 October 11, 2023 04:08
LES post processing in SU2 - statistically steady state Dónal SU2 1 February 1, 2023 17:40
Tutorials not working abby10 SU2 Installation 1 December 28, 2021 06:35
Introducing SU2 International Developers Society (IDS) fpalacios SU2 News & Announcements 1 June 17, 2019 22:38
SU2 LES, discrete adjoint testcase SU2 1 July 27, 2017 04:46


All times are GMT -4. The time now is 17:18.