Abstract
The aim of the present work is to validate and investigate the behaviour of a Variational Multiscale formulation (VMS) in the Large Eddy Simulation (LES) of the flow around a circular cylinder at Reynolds number, based on the free-stream velocity and on the diameter, equal to 3900.
Simulations are carried out with three different eddy-viscosity closure models. Furthermore, the effect of grid resolution investigated, by using two different grid: a coarser grid of about 2.9 × 105 nodes and a finer one with
approximately 1.13 × 106 nodes.
For all simulations comparisons with the experimental data and with the results of the other LES in the letterature are provided.