[anubasu]

Originally Posted by sr786

Hi,

I am a PhD researcher based at the University of Leeds. I want to implement a change to the Reynolds Stress models in OpenFOAM (LRR & SSG).

One of the terms modelled in the LRR and SSG model (turbulent diffusive transport) is based on the generalised gradient diffusion model of Daly & Harlow (1970). Using this approach leads to numerical instabilities and robustness issues in solution.

Instead what I want to do is use the simplified gradient diffusion model of Shir (1973). This model is what is implemented in commerical CFD codes such as FLUENT and can improve solution robustness and accuracy.

However, I am really struggling to implement such a model as I am more of an OpenFOAM user with 0 experience in modifying.

Is there an expert out there who has experience in performing such procedures. I would greatly appreciate either being mentored or if they have done something similar to this, if they could share how exactly they did it?

Hii,

I would like to know how are you implementing LRR/SSG Re stress models in OpenFOAM? There are no tutorials with them in OpenFOAM. Are you seeing the internet and making the implementations? thanks very much

AB

[anubasu]

Hii

I would like to know how are you implementing the LRR/SSG Re stress turbulence models in OpenFOAM? There are no tutorials with them in OpenFOAM. Are you taking help of the internet? thanks

ab