queries about turbulence
 

Hi to all cfd users.I have gone though fluent help manual,and found follwing queries.Pls if anybody knows then give me a little idea.

(1) I have read in manual that Wilcox K-w model is sensitive to free stream value of B.C.why ?

(2) Why k -e is not good for near wall regions?

(3) what are blending functuions in mentor SST?

(4) Why k -e gives poor results for axi symmetric flows?

Thanking u all

Michael

Re: queries about turbulence
 

You should look up the papers that are quoted in the documentation. You will not find these details here.

Re: queries about turbulence
 

Hi Micheal,

In this regards, I would suggest you to read this Paper:

Steady-State Evaluation of 'Two-Equation' RANS (Reynolds-averaged Navier-Stokes) Turbulence Models for High-Reynolds Number Hydrodynamic Flow Simulations

you can find it in internet... I hope it will help.

best regards, houman

Re: queries about turbulence
 

Thanks Houman