The aeroacoustics of rail vehicles is an important issue, for reasons of passenger comfort, local residents and public health.

There are many different sources of noise in a train: rolling stock, traction auxiliaries, etc. Using simulation, Zelin can help you identify sources of aerodynamic noise and optimize the aero-acoustics of your rail vehicle. Here are a few examples:
– Tunnel entry modeling
– Identification and characterization of noise sources (bogie area, pantograph, air intakes, etc.)
– Better positioning of external elements
– Optimization of shapes for noise reduction