LES for urban areas
 

Dear all,
I plan to compute some LES simulations using OpenFOAM to study to flow field around a urban area (1km2).
I' m collecting experimental data since 1 month (3d anemometers mean+turbulence) and i would like now to run LES.
I m confused with all the models proposed by OpenFOAM, which one would you recommend me? the dynOneEqEddy is adequate?
i plan to use the cubeRootVol as the delta.
Regarding the inlet, i plan to use cyclic boundary conditions.
Regarding the mesh, i prepared one with cells 1m close to the ground/wall.
Does someone has any suggestion or tried to run LES for such case.
Thanks in advance for your help.