Thank you Thokozani Kunene

Could you tell us the references about your statement, please?

If you are asking about RANS then use k-w SST. It works well in augmented tubes because it can handle near wall situations better than the other classical models.

Thanks Mahabat Khan

Could you share the references for that, please?

Thank you very much.

Kind regards.

If you are not concerned about the computational time then k-w SST is the best choice however, k-epsilon realizable also works reasonably well as it is more robust then k-w SST but obviously less accurate. It is always a trade off between the accuracy and computational resource. I have attached a paper for your reference. Go through section 3.2 Turbulence model selection. Hope that helps!

Thank you very much Mahabat Khan , I appreciate it.

k-w, SST model is the best.

Thank you Thokozani Kunene

Could you tell us the references about your statement, please?

Hi, if you are asking about RANS then use the k-w SST or RNG K-e turbulence models. But If you are asking about LES then use the Model Wall-Adapting Local Eddy. Good luck Nazaruddin Sinaga

Thank you very much Abderazak Bennia

So, there are 2 turbulence models that suitable for computation of finned annular tubes with RANS, i.e. k-w SST and k-e RNG.

Please Mahabat Khan and Thokozani Kunene , do you agree?

Hi,

I can recommended this article:

Article Numerical Study of Flow Over Annular-Finned Tube Heat Exchan...

Dear Hossain Nemati

Thank you very much for the reference....

Dear scholars, please give your comments.

Thank you very much.

Dear respected colleagues and scholars. Please participate in the discussion and give your comments.

Thank you very much.