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-   -   Low-Re (full RSTM or analytical RSTM) turbulence model (http://www.cfd-online.com/Forums/openfoam/73765-low-re-full-rstm-analytical-rstm-turbulence-model.html)

volker March 16, 2010 11:14

Low-Re (full RSTM or analytical RSTM) turbulence model
 
hello foamers,

I have basically two questions:
1) I'm looking for an analytical or full reynolds stress model for incompressible flows without wall functions, means in low-Re formulation. Did anybody implement such a turbulence model or is working on? as far as I know there is no RSTM in low-Re formulation in the current release.

2) Does anyone know, if the energy equation can be solved separately from the momentum equation. Supposing you have a fully converged velocity field, would it be possible to solve the energy equation afterwards on top of the velocity field? I think it should be possible by excluding the momentum equation in the solver file. but I just wanted to know if anybody has already experience with that?

many thanks and regards,
\volker

Thomas Baumann March 17, 2010 04:55

Hi Volker,

I have implemented an algebraic stress model in low-reynolds formulation. Send me your e-mail adress and you will get it.

If buoyancy-effects or the velocity-temperature-fluctuations can be neglected and the viscosity, etc. can be set as constant, you can solve the NS-equations and afterwards the energy equation.

Regards Thomas

volker March 17, 2010 07:44

hello thomas,

great news and many thanks for your reply. I sent you a pm with my mail address.

regards
\volker

xiao November 16, 2010 05:54

RSTM in Low Re formulation
 
Dear Thomas,

I am also interested in the Low-Re formulation of RSTM. May I also get a copy of the code?

Best,
Heng


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