Numerical Analysis of Mechanism of Aerodynamic Noise Reduction in Bogie Area by Rounding Corners of Bogie Cavity

Aerodynamic noise radiated from high-speed trains in operation is attracting attention from an environmental point of view. Bogie areas are known to be the main sources of the aerodynamic noise. Rounding the four corners of the bogie cavity has been proposed as a measure to reduce bogie aerodynamic noise, and...