机车车辆排风风帽出风口面积对流动阻力的影响  

Effect of exit area of the exhaust cap on flow resistance for locomotive and rolling stock

作　　者：宋丹辉[1] 刘叶弟[1] 臧建彬[1] 程熠[1] 

机构地区：[1]同济大学机械工程学院,上海201804

出　　处：《内燃机车》2009年第2期6-9,共4页Diesel Locomotives

摘　　要：通过试验研究了排风风帽的出风口面积对流动阻力的影响,出风口面积的增大会减小排风风帽的流动阻力,且流动阻力的降低与排风风帽的结构有关。研究结果为机车车辆的排风风帽的设计和改进提供参考。The influnce of exit area of the exhaust cap for locomotive and rolling stock on flow resistance was studied by experiment.Increasing exit area could decrease the flow resistance of the exhaust cap,and the decrease was related to the structure of the exhaust cap.The study result could be used for the design and improvement of the exhaust cap of locomotive and rolling stock.

关 键 词：机车车辆 排风风帽 出风口面积 流动阻力 

分 类 号：U270.383[机械工程—车辆工程]