철도차량 통과 시 터널 내부 유동장 해석을 위한 무격자기법의 적용에 관한 연구

We developed a computational fluid analysis program that can perform flow analysis when a high - speed railway vehicle passes through a tunnel by applying meshless computational technology in this study. The program was verified by comparing transonic RAE 2822 airfoil with experimental measurement results and numerical analysis results. From the proven analytical techniques, we propose the behavior of the high - speed trains moving into the tunnel by using the meshless - based computational fluid technique as a dedicated analysis tool that can be easily used even by the novice users. We compared the pressure generated during the passage of a high-speed train using this analysis technique with the results of C-STATM, which is a conventional program for high-speed train design. In the case of the tunnel without shaft tunnel, it shows the same result as the existing C-STATM and the result of this development program, showing the possibility of using this program using the meshless technique as a dedicated program for railway vehicles.