Wind Tunnel Studies on the Prevention of Particle Accumulation Onto the Bogie of High-Speed Train

When high-speed train runs in the environment with a large number of airborne particles, these particles may accumulate on bogie train, which will further challenge normal operation and reduce riding comfort safety. In order to prevent entering into area, different protective devices around are used. However, up present, systematical analysis effects diverse measures against types still very limited. this study, widely-used shirt boards spoilers as devices, particle transport processes were simulated wind tunnel Lab. Three kinds typical including artificial snow particle, wheat bran (substitute snowflake) sieved soil, chosen represent under real conditions. evolution indexes, relative reduction ratio flux fine bran, concentration sieve soil used assess their effects. Results showed that combination short-skirt board straight triangular spoiler (i.e., A5 case, triangle installed at front rear ends bogie, both sides bogie) was best protection studied three particles. The average mass case 75.59%, level exceeded 78%, more than 96%.