Contents
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 is the description of the additional models that have been implemented into a single OpenFOAM library. The description on how to obtain these additional incompressible RAS models can be found here:
2.1.1 kOmega family
2.1.1.1 kOmega-SSTF
- Short description: Sig_Turbulence/Library_Added_Incompressible_RAS_Models/kOmegaSSTF
- Problems / Difficulties with the implementation
- Literature
- Field of application
- Small Example Case: [1]
- Download: libaddedIncompressibleRASModels.so
2.1.2 v2f family
2.1.2.1 zeta-f0
- Short description: Sig_Turbulence/Library_Added_Incompressible_RAS_Models/zetaF0
- Problems / Difficulties with the implementation
- Literature: [2]
- Field of application
- Small Example Case: [3]
- Download: libaddedIncompressibleRASModels.so
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: 
2.1.4 Transitional models
2.1.4.1 mykkLOmega model
- Description
The model is based on original OpenFOAM version of kkLOmega model according to Walters and Cokljat. The model contains corrections described in Fürst, 2012. The repository contains the ERCOFTAC T3A flat plate case which should be run with 'unset FOAM_SIGFPE'.
- Literature
- D. Keith Walters, Davor Cokljat: "A Three-Equation Eddy-Viscosity Model for Reynold-Averaged Navier-Stokes Simulations of Transitional Flow", 2008
- J. Fürst: "Numerical Simulation of Transitional Flows with Laminar Kinetic Energy", 2012
- Download
https://github.com/furstj/mykkLOmega.git
Valid versions: 
