[PenPencil]

Hi all,


I am simulating the flow over a circular cylinder at Re=10000 using DES with the Spalart-Allmaras model in the RANS part. I was running the simulation without wall functions and my y+<1 in the periodic regime (after many shedding cycles). But now I realise that the boundary-layer is laminar according to experiments in the literature. Should I use some wall function for this? Because, as I understand, DES will model the boundary-layer as turbulent by using RANS there.

If references could be provided for this, I would highly appreciate as well.


Thanks.