提速列车车厢减小空气阻力风洞实验研究

Wind Tunnel Experimental Investigation of Decreasing Aerodynamic Drag of Increasing Speed Train

列车提速使得其空气阻力明显增大。为了减小空气阻力，列车车厢气动外形的研究变得愈加重要。在低速风洞中获得的实验结果表明，对现型列车车厢局部外形稍加改善，就能使得其空气阻力大为降低。这是实现我国列车提速最为有效的途径之一。

Increasing speed makes aerodynamic drag of train increase obviously.To decrease aerodynamic drag,it is important to improve aerodynamic contour of train. Experiment results show that a little change of partial contour of train can greatly decrease aerodymic drag.This is an effective way to decrease aerodynamic drag of increasing speed train.