CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Transition SST k-omega and solver choice for incompressible flow over wing

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

LinkBack Thread Tools Display Modes
Old   August 4, 2014, 18:33
Default Transition SST k-omega and solver choice for incompressible flow over wing
Senior Member
Join Date: Oct 2011
Location: UK
Posts: 199
Rep Power: 7
Aeronautics El. K. is on a distinguished road
Sponsored Links
Hi all,

I'm trying to simulate the flow over a simple wing and I'm mostly interested in the transition onset. I'm using a structured mesh and the transition SST k-w model in Fluent. The Reynolds number is about 2e6 and I have tried the coupled solver and the SIMPLE (low speed (28m/s) incompressible flow). However, I don't think I'm getting very sensible results. The mesh I've used for this preliminary analysis is about 2 million cells and the y+ value is below 1 (1.10 max).

Also, in the boundary conditions I leave the intermittency to the default value (1) and I use the intensity and length scale as well (where for the lenght scale I use the 0.4 times the boundary layer thickness).

I suspect that the grid is relatively coarse. I do have two finer grids (about 4 and 8 million cells). Apart from this however, is there anything else I should have in mind that escapes my attention? Which solver would you recommend and what boundary conditions for the turbulence model?

Thanks for your help.


Aeronautics El. K. is offline   Reply With Quote
Sponsored Links


boundary conditions, solvers, sst k-w, transition

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
Scaling omega in SST turbulence model TedBrogan Main CFD Forum 0 January 23, 2013 01:00

Sponsored Links

All times are GMT -4. The time now is 06:04.