Difference between revisions of "Sig Turbulence / Collection of additional turbulence models"
Mirzapopovac (Talk | contribs) (→RANS) |
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== RANS == | == RANS == | ||
| − | + | Below are described the additional models that have been implemented into a single OpenFOAM library. | |
| − | The descriptions of implementations of | + | The descriptions of implementations of these additional incompressible RAS models can be found here: |
* [http://openfoamwiki.net/index.php/Sig_Turbulence_Library_Added_Incompressible_RAS_Models libaddedIncompressibleRASModels.so] | * [http://openfoamwiki.net/index.php/Sig_Turbulence_Library_Added_Incompressible_RAS_Models libaddedIncompressibleRASModels.so] | ||
| − | === | + | |
| − | ==== | + | === kOmega family === |
| − | + | ==== kOmega-SSTF ==== | |
| − | * Short description | + | * Short description: [http://openfoamwiki.net/index.php/Sig_Turbulence_Library_Added_Incompressible_RAS_Models_kOmegaSSTF] |
* Problems / Difficulties with the implementation | * Problems / Difficulties with the implementation | ||
* Literature | * Literature | ||
| + | * Field of application | ||
* Small Example Case | * Small Example Case | ||
| − | * Download | + | * Download: [http://openfoamwiki.net/index.php/Sig_Turbulence_Library_Added_Incompressible_RAS_Models libaddedIncompressibleRASModels.so] |
| − | ==== zeta- | + | === v2f family === |
| − | + | ==== zeta-f0 ==== | |
* Short description | * Short description | ||
* Problems / Difficulties with the implementation | * Problems / Difficulties with the implementation | ||
* Literature | * Literature | ||
| + | * Field of application | ||
* Small Example Case | * Small Example Case | ||
* Download | * Download | ||
Revision as of 05:37, 9 July 2012
1 Comment
This site should be a collection of new implemented turbulence models
As soon as the model is stable and does not need any further developing, it should be marked and copied to svn.
2 Incompressible
2.1 RANS
Below are described the additional models that have been implemented into a single OpenFOAM library. The descriptions of implementations of these additional incompressible RAS models can be found here:
2.1.1 kOmega family
2.1.1.1 kOmega-SSTF
- Short description: [1]
- Problems / Difficulties with the implementation
- Literature
- Field of application
- Small Example Case
- Download: libaddedIncompressibleRASModels.so
2.1.2 v2f family
2.1.2.1 zeta-f0
- Short description
- Problems / Difficulties with the implementation
- Literature
- Field of application
- Small Example Case
- Download
2.1.3 Models with advanced wall treatment
2.1.3.1 kOmega-SST (CWT)
- Short description
This model is based on the 'default' OpenFoam kOmegaSST implementation with some adjustemts to get an enhanced/compound wall treatment (similar to FLUENT). The implementation is based on Popovac/Hanjalic.
- Problems / Difficulties with the implementation
It seems to work for some meshes quite well (the range up to y+=0.3-10 and from 20- around 40 (?) works well, at least the results are similar to the default tutorial for the Launder-Sharma model; I did not test a u+/y+ view yet...). I would be nice, if you can test the model on your test case and give some suggestion for improvement!? Basically I just coupled the boundary conditions for omega, the turbulent kinetic energy production and viscosity for the low-Re and high-Re case using a function like exp(-Gamma). Right now, I set the values in the wall nearest cell (faceCelli), though I am not sure, if they have to get set at the boundary face (facei) as well!?
- Literature
Popovac, M., Hanjaliæ, K., 2007, Compound wall treatment for RANS computations for complex turbulent flows and heat transfer. Flow, Turbulence and Combustion, 78(2), 177-202
http://repository.tudelft.nl/file/354721/370010
- Small Example Case
This is aquite simple test case for RANS models based on the boundaryFoam tutorial. It should be quite simple to run.
- Download
Valid versions: 
