Vortex-induced vibration represents a critical mechanism of structural damage,which not only reduced service life of workpieces but can also lead to structural deformation and failure,thereby posing safety risks or causing economic losses. This study conducts a numerical simulation of vortex-induced vibrations in porous media cylinders using CFD software, employing the k-ω turbulence model and SIMPLE pressure-velocity coupling method.Simulations were carried out on single porous media cylinders, three porous media cylinders,and transversely arranged cylinders in matrix configurations to study vortex-induced vibration problems under various scenarios.By comparative analysis,the study examined the impact of porous media on cylinder vortex-induced vibrations in different arrangement scenarios.The results indicate that in all arrangement scenarios, the addition of porous media can result in uniform force distribution on the cylinders and a more stable flow field,effectively eliminating the occurrence of vortex-induced vibrations.This extends the service life of the workpieces,enhances efficiency,and demonstrates significant practical value and application prospects.