By using large eddy simulation

numerical simulation of wind buffeting noise in a car when opening different side-windows was conducted.The mechanism of wind buffeting noise of side-windows was revealed

and the reason that the sound pressure level in the driver's ears exhibited differences in different cases was discussed.The results show that the turbulence intensity and the energy dissipation are relatively weak near the rear windows.When opening a rear window

wind buffeting noise is the maximum;when opening two

the air derived effect can effectively reduce it.A corresponding suppression measure which involved installing a kind of disturbed flow device was proposed

and the effects of wind buffeting noise under different shapes of devices were discussed.The simulation results show that the square device is the most evident

and the maximum degradation is 15dB.