|
[Sponsors] |
Transition SST k-omega and solver choice for incompressible flow over wing |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
August 4, 2014, 19:33 |
Transition SST k-omega and solver choice for incompressible flow over wing
|
#1 |
Senior Member
Lefteris
Join Date: Oct 2011
Location: UK
Posts: 341
Rep Power: 16 |
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. Lefteris
__________________
Lefteris |
|
Tags |
boundary conditions, solvers, sst k-w, transition |
Thread Tools | Search this Thread |
Display Modes | |
|
|
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 |