Abstract
The RTRI's Large-Scale Low Noise Wind Tunnel located in Maibara-shi in Shiga Prefecture, Japan, is a unique railway wind tunnel built for the purpose of studying aeroacoustic and aerodynamic phenomena for high-speed trains. This wind tunnel has following features:
/Extremely low background noise enables measurement of the aerodynamic noise generated from a model with remarkable accuracy.
/The test section is long enough to allow wind tunnel tests for a train-set model composed of multiple cars.
/The wind tunnel has boundary layer suctions and a large and high speed moving belt. These enable simulation of flow between the model and the ground with considerable reality. This will be helpful for conducting research on decreasing the aerodynamic drag and improving the aerodynamic characteristics of high-speed trains.
This wind tunnel can be used for not only railways but also automobile and others.
