Divergence Free Synthetic Eddy Method for Embedded LES inflow boundary conditions

A new inlet treatment for embedded LES is here proposed. The method, based on the SEM proposed by [1], satisfies the divergence free condition of the velocity field, and hence reduces the pressure fluctuations present in the downstream flow close to the inlet with the original SEM. Results compare the new method against the SEM and the VORTEX method, introduced by [2], for a plane channel flow, showing that the proposed scheme produces fairly realistic inlet turbulence, and hence requires a shorter development length compared to the other two schemes.