LES wall treatment
 

I need a little help about LES wall treatment. I can not understand (from documentation) the exatcly wall treatment in Large Eddy Simulation by Fluent. I'm sure that if I enable Werner-Wengle wall function FLUENT calculate wall velocity profile using linear law and logaritmic law (with y+). BUT I cannot really understand what's default LES wall treatment.

Thanks in advance. Valerio