References for OpenFoam4.x k-epsilon model??

Mehrez · May 17, 2018, 13:01

Hello all,
I'm using OpenFoam v4 and modelling turbulence using k-epsilon model.
Checking the coded k-epsilon equations (https://github.com/OpenFOAM/OpenFOAM...lon/kEpsilon.C), I couldn't find any references in the literature similar to what is implemented.
The form implemented in OpenFoam v4 is different from those I could see on:
- Launder, B. E., & Spalding, D. B. (1974),
- El Tahry, S. H. (1983),
- Rusche H. (2002),
- Behzadi A., (2001 and 2004),
- and in https://www.cfd-online.com/Wiki/Stan...-epsilon_model
Do you have references regarding the OpenFoam v4 k-epsilon model?
Thank you for your help,
mhrz

Taataa · May 17, 2018, 14:29

The official reference are mentioned here.

Mehrez · May 17, 2018, 14:43

Thank you for your help.
I have checked these files and, unless I'm wrong, the equations implemented are the ones I'm showing in the attached image. Again, these equations don't correspond to the ones referenced in the file.
Thanks for your time and help.
mhrz

Mehrez · May 18, 2018, 15:20

Plese share any useful references if you can.
Thank you,
mhrz

Taataa · May 18, 2018, 20:12

k-epsilon implementation? (including volScalarField G)

Mehrez · May 22, 2018, 10:44

Thank you for sharing the link.
The code has a little bit changed in version 4 but it's still very useful.
Do you know how source terms "kSource()" and "epsilonSource()" are implemented?
My understanding is that they are used for bubble induced turbulence in the case of two-phase dispersed flow.
Thank you.
mhrz

May 17, 2018, 13:01	References for OpenFoam4.x k-epsilon model??	#1
Mehrez Member Sami Join Date: Nov 2012 Location: Cap Town, South Africa Posts: 87 Rep Power: 14	Hello all, I'm using OpenFoam v4 and modelling turbulence using k-epsilon model. Checking the coded k-epsilon equations (https://github.com/OpenFOAM/OpenFOAM...lon/kEpsilon.C), I couldn't find any references in the literature similar to what is implemented. The form implemented in OpenFoam v4 is different from those I could see on: - Launder, B. E., & Spalding, D. B. (1974), - El Tahry, S. H. (1983), - Rusche H. (2002), - Behzadi A., (2001 and 2004), - and in https://www.cfd-online.com/Wiki/Stan...-epsilon_model Do you have references regarding the OpenFoam v4 k-epsilon model? Thank you for your help, mhrz

May 18, 2018, 20:12		#5
Taataa Senior Member Taher Chegini Join Date: Nov 2014 Location: Houston, Texas Posts: 125 Rep Power: 13	k-epsilon implementation? (including volScalarField G) Mehrez likes this.

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May 17, 2018, 14:29		#2
Taataa Senior Member Taher Chegini Join Date: Nov 2014 Location: Houston, Texas Posts: 125 Rep Power: 13	The official reference are mentioned here.

May 18, 2018, 15:20		#4
Mehrez Member Sami Join Date: Nov 2012 Location: Cap Town, South Africa Posts: 87 Rep Power: 14	Plese share any useful references if you can. Thank you, mhrz

May 22, 2018, 10:44		#6
Mehrez Member Sami Join Date: Nov 2012 Location: Cap Town, South Africa Posts: 87 Rep Power: 14	Thank you for sharing the link. The code has a little bit changed in version 4 but it's still very useful. Do you know how source terms "kSource()" and "epsilonSource()" are implemented? My understanding is that they are used for bubble induced turbulence in the case of two-phase dispersed flow. Thank you. mhrz