병렬 컴퓨터를 이용한 판토 모델 공력 해석

초록

when a train travels over 300km/h, 70% of noise produced is caused by aerodynamical disturbance, and a pantograph is one of the source that causes aerodynamic noise. In this research, we assumed that a cross section of pantograph fan head is modeled as a square shape and there is no interference with the other structures, and we used a supercomputer to analyse the aerodynamic noise structure of vortex shedding, which is caused by interrelation between the airflow and the fan head. For the aerodynamic noise analysis in Re