Evaluation Method for Aerodynamic Noise Generated from the Lower Part of Cars in Consideration of the Characteristics of Under-floor Flows on Shinkansen Trains

A method has been developed for predicting the aerodynamic noise from the bogie of a high-speed train using a two-dimensional microphone array in a low-noise wind tunnel. First, the flow velocity in the rail direction was measured in a field test at several points along the sleeper direction under the...