Aerodynamic performance of airshafts and slit & slit-cover hoods for railway tunnels using moving model tests

초록

This study sought to investigate the aerodynamic performance of airshafts with varying internal diameters in a tunnel with small bore and hood configurations at a tunnel with a large bore for reducing the peak values of the pressure transients and micro-pressure waves generated upon train entry in a railroad tunnel. Moving model tests for three configurations of airshafts and hood configurations with slits and slit-covers were conducted for the reduced train and tunnel models considering the speed-up of future high-speed trains in Korea.