[Nek5000-users] LES-wall

[nek5000-users at lists.mcs.anl.gov]

Hello all,

I have a question regarding LES capability of Nek.
I know that the explicit filtering introduced in Nek can be effective 
for velocity field to provide sort of eddy viscosity modeling. 
Nevertheless, there should be some form of modeling for the near wall 
regions, since it is almost infeasible to have DNS like resolution in 
such regions for problems with relatively high Reynolds number and large 
scale geometries. I have seen SFR assemblies example on the Nek web in 
which LES used, however, I am not sure if that was an LES with near-wall 
resolution or with near-wall modeling.

So I was wondering if anyone has any experience of using Nek LES with 
near wall models, or kind of hybrid RANS-LES approaches.

Thanks,
Mohsen