A numerical investigation has been conducted to characterize the reduction of noise emissions generated by a flat plate with downstream porosity interacting with incoming turbulence. The work builds on the experimental and analytical study performed at the University of Southampton, where several physical mechanisms potentially contributing to noise reduction were identified. These include inversions of the pressure-jump phase, possibly linked to secondary vorticity phenomena, destructive interference between noise sources, and alteration of coherent structures within the boundary layer. The numerical simulation was carried out using the Lattice–Boltzmann Method (LBM) solver PowerFLOW and was set up to reduce numerical effects on the interaction between turbulence and the flat plate, such as those caused by periodic boundary conditions.