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

Fully turbulent RANS blow-up on very simple case

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 28, 2023, 09:52
Default Fully turbulent RANS blow-up on very simple case
  #1
New Member
 
Mauro Minervino
Join Date: Oct 2018
Posts: 5
Rep Power: 8
mauro_minervino is on a distinguished road
Dear all,

I was running steady RANS simulations of the transonic flow around a very simple grid and geometry: an isolated elliptic-planform wing (half model, zero sideslip angle). Wing sections are NACA0012 airfoils with closed t.e., and the mesh is made of hexahedra.
No problems at angles of attack different from zero. Nevertheless, I was unable to obtain a solution at zero incidence.
The case at zero angle of attack runs with no difficulty in inviscid conditions (Euler simulation), in viscous and laminar flow, and even with turbulence but in free transition. But when I go for fully turbulent RANS, the simulation blows up.
For the same grid and flow conditions, no difficulty was ever encountered using other flow solvers, either structured or unstructured.
Here below I provide a link to the mesh and configuration files:

https://cirascpa-my.sharepoint.com/:...JaNOQ?e=dBbhB6

Two different formats of the grids are included: CGNS and native SU2. However the problem was encountered with both files.
I used the last SU2 code version (8.0.0), on a Linux HPC cluster with MPI.

Could anyone provide suggestions to solve this issue?
Thanks for your support.
Kind Regards,
Mauro Minervino
mauro_minervino is offline   Reply With Quote

Reply

Tags
blow out, blow up, hexa, rans, steady

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
Problem with divergence TDK FLUENT 13 December 14, 2018 07:00
Free surface boudary conditions with SOLA-VOF Fan Main CFD Forum 10 September 9, 2006 13:24
Validation case for turbulent flow Ratan Main CFD Forum 0 October 4, 2005 04:03
Validation case for turbulent flow Ratan Main CFD Forum 0 October 4, 2005 04:02
Turbulent Flat Plate Validation Case Jonas Larsson Main CFD Forum 0 April 2, 2004 11:25


All times are GMT -4. The time now is 11:37.