高速列车空气动力学特性的风洞试验研究

通过对2种头型高速列车1:8模型在8m×6m风洞开展的试验,比较了2种头型高速列车的气动特性,并进行了头车大侧风安全性的试验研究.结果表明,优化头型高速列车的气动阻力明显小于原型车的气动阻力,优化头型的3车编组列车的全车气动阻力比原型车约小3.7％；优化头型列车的纵向气动特性比原型车略差；2种头型的横向气动特性差异很小.

The Wind Tunnel Test and Research on Aerodynamics Characteristics of High Speed Trains

Via the test carried out on the 1∶8 models of high speed trains of two types of head shapes in the 8 m×6 m wind tunnel,the aerodynamics characteristics of high speed trains of two types of head shapes are compared,the test and research on safety of head cars with great cross wind are made.The result shows that the aeroclynamic resistance of high speed trains with optimized head type is obviously smaller than the aeroclynamic resistance of the original type of cars,the aeroclynamic resistance of the complete 3-car train with optimized head shape is about 3.7% less than the original type of train;the longitudinal aeroclynamic characteristics of the train with optimized head type is slightly worse than those of the original type of train;the difference of lateral aeroclynamic characteristics between the trains with the two types of head shapes is very slight.