강설과 눈 비산 상황에 따른 고속열차의 착설에 대한 수치적 비교 연구

Abstract

The accumulation of snow on train bogies hinders the smooth operation of important parts, degrading the safety of the vehicle. This is primarily due to snowfall and snow saltation from the ground. This study conducted a comparative study on the snow accumulation of high-speed trains due to snowfall and snow saltation conditions. To describe the movement of the snow, we adopted the Eulerian method which consists of continuity and momentum equations for snow density. Additionally, the process of snow saltation was described by implementing the semi-empirical model into a boundary condition. As a result, the snow accumulation on the train showed different trends in the snowfall and snow saltation conditions. The amount of snow accumulation decreased toward the rear of the train in snowfall conditions, but it showed a tendency to increase toward the rear in snow saltation conditions.