2D airfoil amp wall functions

kuky · June 12, 2007, 09:02

I'm studing 2D viscous turbulence flow on NACA 0012 airfoil and I don't know how activate or not wall functions (perhaps is the role of the word "WALL" in ~/constant/polyMesh/boundary?).

What are the boudaries conditions for k, epsilon or omega on airfoil and when I use or not wall functions?

How can I resolve transition from laminar to turbulence flow (fortunately I know transition point by Xfoil)?

doug · July 3, 2007, 13:06

I'm interested in the answer to this as well. In fact, it seems that 2D airfoil studies are so common that there ought to be a case in the tutorials that come with the OpenFOAM installation for both laminar and turbulent airfoil studies. Is there a reason such cases are not included in the tutorials, or who could I contact to submit such a case once I have it working?

Thanks.

Doug

June 12, 2007, 09:02	I'm studing 2D viscous turbule	#1
kuky New Member Luca Join Date: Mar 2009 Location: Milano, Italy Posts: 2 Rep Power: 0	I'm studing 2D viscous turbulence flow on NACA 0012 airfoil and I don't know how activate or not wall functions (perhaps is the role of the word "WALL" in ~/constant/polyMesh/boundary?). What are the boudaries conditions for k, epsilon or omega on airfoil and when I use or not wall functions? How can I resolve transition from laminar to turbulence flow (fortunately I know transition point by Xfoil)?

July 3, 2007, 13:06	I'm interested in the answer t	#2
doug Member Doug Hunsaker Join Date: Mar 2009 Location: Logan, UT Posts: 63 Rep Power: 17	I'm interested in the answer to this as well. In fact, it seems that 2D airfoil studies are so common that there ought to be a case in the tutorials that come with the OpenFOAM installation for both laminar and turbulent airfoil studies. Is there a reason such cases are not included in the tutorials, or who could I contact to submit such a case once I have it working? Thanks. Doug

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