摘要
为减少钝头列车的气动阻力,对车头圆顶、车体底罩、车间风挡的假想模型进行数值模拟计算。结果表明:钝头列车加装车体底罩及车头前部圆顶等结构,并以高于100km/h的速度运行时,减阻效果良好,行驶速度越高,减阻效果越明显。
According to the models of a certain blunt train surface structure through add-assembly,simulating calculation of it＇s aerodynamic drag under different velocity.The results show that the better add-assembly method is adding bottom cover and dome for the train when the train＇speed higher than 100km/h;the higher running speed,drag reduction effect is more obvious.
出处
《交通科技与经济》
2014年第5期65-67,共3页
Technology & Economy in Areas of Communications
关键词
钝头列车
气动阻力
风挡
底罩
圆顶
blunt train
aerodynamic drag
windshield
bottom cover
dome
