Influence of Apron and Equipment Cabin on Aerodynamic Characteristics of Intercity Train

Abstract

The objective of this study was to investigate the influence of apron and equipment cabin on aerodynamic characteristics of intercity train using numerical simulation. Then aerodynamic force of the train in the open air and crosswind, pressure changes of the train and tunnel were obtained. The results show that the intercity train with apron or equipment can reduces drag, which mainly reduces the pressure differential drag more than 7%. The train with apron has better crosswind stability than with equipment cabin because of the smaller windward area, and obviously it does not better than the original train. And the train with apron also has better performance of passing tunnel than with equipment cabin and the original train.