Influence of the compact explicit filtering method on the perturbations growth in temporal shear-layer flow

In this paper the effect of the explicit filtering of high frequency phenomena performed by means of the high order compact filters is presented. A 2D unsteady incompressible flow in which the perturbations superimposed on the mean velocity profile evolve in time is considered. The dependence of the amplitudes of disturbances is analysed for various filtering procedures and compared with other methods intended to remove high frequency waves.