CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

Turbulence parameters on the free stream boundary

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

LinkBack Thread Tools Display Modes
Old   August 8, 2013, 07:53
Default Turbulence parameters on the free stream boundary
Join Date: Mar 2013
Posts: 48
Rep Power: 6
heksel8i is on a distinguished road

I have an underexpanding nozzle and I set pressure outlet as a boundary condition for all the outlet boundaries around the domain. I use k-omega SST turbulence model and I am puzzled what kind of back-flow turbulence intensity and viscosity ratio should I apply on the outlet boundary. At the moment I have run with I=5% and turb. visc. ratio = 0.1 at the outlet. In the nozzle I have same intensity but greater viscosity ratio. This has worked well, but I would like to hear some other opinions that is it a right way to approach...
heksel8i is offline   Reply With Quote


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
Radiation interface hinca CFX 15 January 26, 2014 18:11
LES in DES can't be actived! shenying0710 CFX 17 January 23, 2014 05:45
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15
Multicomponent fluid Andrea CFX 2 October 11, 2004 05:12

All times are GMT -4. The time now is 20:26.