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-   -   Inviscid Flow over an AirFoil using OpenFOAM (https://www.cfd-online.com/Forums/openfoam/120592-inviscid-flow-over-airfoil-using-openfoam.html)

biau July 10, 2013 07:52
Inviscid Flow over an AirFoil using OpenFOAM
 
Hello,

I need to prepare a inviscid simulation over a NACA0012 using OpenFoam, but I can't think how to use openfoam to solve the inviscid flow.

I am using a basic mesh created in ICEM and converted to OpenFOAM.

Any idea or recommendations ?

Thank you

Artur July 10, 2013 08:34
Check this first:

tutorials/incompressible/simpleFoam/airFoil2D

biau July 10, 2013 08:42
Quote:
Originally Posted by Artur (Post 438940)
Check this first:

tutorials/incompressible/simpleFoam/airFoil2D
I have checked that already, but apparently it uses Spalart Allmaras as a solver.

I know how to set a simulation using RANS and other turbulence models, but I can't find out how to set up a inviscid simulation like you would do in Fluent.

Any idea ?

thank you

Artur July 10, 2013 08:50
I'm not entirely sure what you mean by:

Quote:
Originally Posted by biau (Post 438946)
how to set up a inviscid simulation like you would do in Fluent.
Also, Spalart-Allmaras is a one-equation turbulence model. For more info see:

http://www.cfd-online.com/Wiki/Spalart-Allmaras_model

if you want to use a different one (k-epsilon, k-omega, etc.) you should edit the constant/RASProperties file, adjust the boundary conditions in your 0 directory and schemes and solvers in system/fvSolution and system/fvSchemes files.

biau July 10, 2013 08:53
Quote:
Originally Posted by Artur (Post 438950)
I'm not entirely sure what you mean by:



Also, Spalart-Allmaras is a one-equation turbulence model. For more info see:

http://www.cfd-online.com/Wiki/Spalart-Allmaras_model

if you want to use a different one (k-epsilon, k-omega, etc.) you should edit the constant/RASProperties file, adjust the boundary conditions in your 0 directory and schemes and solvers in system/fvSolution and system/fvSchemes files.
Thank you for your help, but I already know how to set up laminar and turbulent cases. I just don't know how to do it without considering viscosity. I need inviscid cases. I am preparing a tutorial for my university and it need to be inviscid.

Thank you

Artur July 10, 2013 09:24
I'm sorry, I totally didn't understand your question. There is the potentialFoam solver which should do what you want although I've only used it once.

biau July 11, 2013 05:08
I still don't get it. Is it possible to modify the solver (simpleFoam) and remove the viscous terms ?

Artur July 11, 2013 05:39
Apparently some people have already tried that:

http://www.cfd-online.com/Forums/ope...implefoam.html

Perhaps if you dig deeper you will find the answers you are looking for.


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