Numerical Simulation of High Speed Train’s Head Shape and Resistance Characteristics

To develop Chinese standard EMU with speed of 350 kilometers per hour, the paper introduces a numerical simulation method to evaluate the resistance characteristics of four kinds of trains with different head shapes and gives suggestion on type selection. According to resistance characteristics of three parts of main part including pantograph cavity, windshield and air conditioner fairing, the present research carry out the local optimum design of train and calculate selected types, involving 11 types of train shapes. It is found that the optimal design is capable to effectively reduce operating aerodynamic resistance of the train and improve the vehicle aerodynamic performance.