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

CFD notes

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

OpenFoam, SALOME, all free tools for engineers
Old

Airfoil NACA 23012 results, transonic flow

Posted May 28, 2013 at 05:38 by skeptik (CFD notes)

What i've got about my airfoil (exp and Fluent data were extracted from article, but it's in russian. originally exp data from TZAGI report)
Click image for larger version

Name:	M06_rhocentral.jpg
Views:	130
Size:	87.8 KB
ID:	143

So there present oscillations, they were caused by second order schemes. I'll simulate it on upwind later.

The differences in p fields are showed here:

upwind
Name:  firstOrder.jpg
Views: 828
Size:  15.1 KB
linear corrected 1
Name:  secondOrd.jpg
Views: 776
Size:  16.8 KB
Member
Posted in Uncategorized
Views 767 Comments 0 skeptik is offline Edit Tags
Old

Hey, Dude, be careful with liftDir/dragDir in controlDict

Posted February 19, 2013 at 04:41 by skeptik (CFD notes)

When U is changed due to angle of attack you should change controlDict in libForces section.

So, what can you get when you have proper controlDict

U=56.4, Re=1.6e6

Name:  kOmega_Epsilon.jpg
Views: 420
Size:  46.2 KB

The mesh was refined so it was OK after checkMesh

Name:  hybrid_refined.jpg
Views: 421
Size:  83.7 KB

not bad) the next - recalculate LowRe K-eps, just for fun.
Member
Posted in Uncategorized
Views 354 Comments 0 skeptik is offline Edit Tags

All times are GMT -4. The time now is 13:43.