HX_D3B型机车机械间热流场数值研究  

Numerical study on thermal flow field of mechanical cab on type HX_D3B locomotive

作　　者：杜礼明[1] 杜亮[1] 孙丽萍[1] 

机构地区：[1]大连交通大学辽宁省高等学校载运工具先进技术重点实验室,辽宁大连116028

出　　处：《电力机车与城轨车辆》2013年第4期51-54,共4页Electric Locomotives & Mass Transit Vehicles

基　　金：牵引动力国家重点实验室开放基金资助项目(TPL0906)

摘　　要：由于电力机车机械间内发热部件较多,为确保正常行车环境下机械间的温度不超过允许范围,有必要对机械间内部的热流场进行深入研究。文章对HXD3B型机车机械间的热流场进行了三维数值研究,分析了恶劣环境温度(如40℃和-40℃)下行车时机械间的温度场与流场分布,研究了不同散热条件对机械间热流场的影响。根据数值模拟结果,任何环境温度下,机械间必须设置并开启通风散热机构,否则机械间内的温度就会超限,还提出了散热机构的优化设计建议。Because of so much heating components,it is necessary to research deeply thermal flow field characteristics of the mechanical cab when electric locomotive runs in normal weather,to ensure its temperature does not exceed allowable range.In the present thesis,numerical study on thermal flow field of the mechanical cab of type HXD3B locomotive is carried out.The flow field and temperature field distribution are analyzed when the locomotive runs in extreme bad ambient temperature（such as 40 ℃ and-40 ℃）.The effects of the cooling conditions on thermal flow field characteristics are researched.According to the numerical results,ventilation unit must be set up for the mechanical cab at any conditions,or the temperature would exceed allowable range.Some advices on optimization design of the ventilation unit are put forward.

关 键 词：HXD3B型机车 机械间 热流场 数值研究 

分 类 号：U260.38[机械工程—车辆工程]