|
[Sponsors] |
May 27, 2021, 04:17 |
NACA 2412 post-stall
|
#1 |
New Member
Danijel
Join Date: May 2021
Posts: 5
Rep Power: 5 |
Hi, i have a question. I study this airfoil, but can I use standard model (k-w sst or sst transition) to study this airfoil after stall at 16 degree? Which models can i use?
|
|
May 27, 2021, 08:24 |
|
#2 |
Senior Member
Lorenzo Galieti
Join Date: Mar 2018
Posts: 375
Rep Power: 12 |
As I said in the other post, use the normal k-omega SST. Stall is not turbulence. At your Reynolds number the flow is 99,9999% turbulent, you don't need to predict laminar to turbulent transition. What you should instead whether is whether to run a steady or an unsteady simulation, because stall is certainly not steady.
You can have stall both in laminar and turbulent flow. |
|
May 27, 2021, 10:11 |
|
#3 |
New Member
Danijel
Join Date: May 2021
Posts: 5
Rep Power: 5 |
Yes, I use only K-w SST for my analysis. But I have another question. I want to compare numerical coeficent static pressure and Experimental coefficent pressure at an angle of pre stall (12 degree). In the front of airfoil I have good results but in the final part no. What a problem could be? I have separation fot this angle at 0.92c
|
|
May 28, 2021, 17:10 |
|
#4 |
Senior Member
Lorenzo Galieti
Join Date: Mar 2018
Posts: 375
Rep Power: 12 |
Hi, if you want to predict the stalled part, you need to run unsteady simulation and then take time average statistics
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Using CFD Post for OpenFoam results | Karpfen | OpenFOAM Post-Processing | 3 | January 19, 2018 08:48 |
Post-processing star ccm+ results in Ansys CFD Post | sidharath | STAR-CCM+ | 4 | April 10, 2017 11:49 |
OpenFOAM v3.0+ ?? | SBusch | OpenFOAM | 22 | December 26, 2016 14:24 |
CFD to analyse tip stall | hedley | Main CFD Forum | 6 | May 1, 2014 17:12 |
Post Processing in FEM | Abhijit Tilak | Main CFD Forum | 0 | April 26, 2004 11:59 |