400km/h高速动车组列车气动外形设计选型
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摘要
为提升动车组列车设计方案气动外形的选型效率,保证列车良好的气动性能,提出基于数值模拟方法的高速动车组列车气动性能评估模型,并利用流体力学分析软件Fluent对时速400 km/h的7种型号的8编组动车组列车设计方案进行气动性能分析,包括各车体及整车的压差阻力、阻力、阻力系数、升力、升力系数等气动参数。结果表明:整车的压差阻力、整车阻力、整车阻力系数、尾车升力、尾车升力系数在揭示最佳气动外形方案时结果基本是一致的。提出的列车气动评估方法和气动参数有利于对列车设计方案中的最佳气动外形选型。
In order to improve selection efficiency of aerodynamic shape of EMU design scheme and guarantee the good aerodynamic performance of EMU train,an aerodynamic performance evaluation model of high-speed EMU was proposed based on numerical simulation method. Hydromechanics analysis software Fluent was used to perform aerodynamic analyses of seven types of EMU design schemes. There were 8 groups in each type of EMU at 400 km/h. The aerodynamic parameters included differential pressure resistance,resistance,drag coefficient,lift,and lift coefficient of each vehicle body and vehicle.The results showed that the parameters including pressure difference resistance,vehicle resistance,vehicle resistance coefficient,tail lift and tail lift coefficient of the whole vehicle were basically the same while revealing the optimal aerodynamic shape scheme. The aerodynamic evaluation method and aerodynamic parameters proposed in this paper were beneficial to the selection of the optimal aerodynamic shape of train design scheme.
In order to improve selection efficiency of aerodynamic shape of EMU design scheme and guarantee the good aerodynamic performance of EMU train,an aerodynamic performance evaluation model of high-speed EMU was proposed based on numerical simulation method. Hydromechanics analysis software Fluent was used to perform aerodynamic analyses of seven types of EMU design schemes. There were 8 groups in each type of EMU at 400 km/h. The aerodynamic parameters included differential pressure resistance,resistance,drag coefficient,lift,and lift coefficient of each vehicle body and vehicle.The results showed that the parameters including pressure difference resistance,vehicle resistance,vehicle resistance coefficient,tail lift and tail lift coefficient of the whole vehicle were basically the same while revealing the optimal aerodynamic shape scheme. The aerodynamic evaluation method and aerodynamic parameters proposed in this paper were beneficial to the selection of the optimal aerodynamic shape of train design scheme.
引文
[1]田红旗.列车空气动力学[M].北京:中国铁道出版社,2007
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[15]田红旗,高广军.270 km/h高速列车气动力性能研究[J].中国铁道科学,2003(2):17-21.
[16]张亮.高速列车气动外形优化设计研究[D].成都:西南交通大学,2017.
[17]梁习锋,田红旗.列车气动性能评估参数研究[J].中国铁道科学,2003,24(1):38-42.
[2]田红旗.中国列车空气动力学研究进展[J].交通运输工程学报,2006,6(1):1-9.
[3]李明,李明高,李国清,等.参数化驱动的高速列车头型气动外形优化设计[J].铁道学报,2013,35(11):14-20.
[4]王东屏,何正凯,李明高,等.动车组气动阻力降阻优化数值研究[J].铁道学报,2011,33(10):15-18.
[5]张在中,周丹.不同头部外形高速列车气动性能风洞试验研究[J].中南大学学报:自然科学版,2013,44(6):2603-2608.
[6]黄问盈,黄民.列车基本阻力的思考[J].中国铁道科学,2000,21(3):44-57.
[7]肖京平,黄志祥,陈立.高速列车空气动力学研究技术综述[J].力学与实践,2013,35(2):1-12.
[8]梁习锋,田红旗,邹建军.动力车纵向气动力风洞试验及数值模拟[J].国防科技大学学报,2003,25(6):101-105.
[9]陈锐林,曾庆元,向俊,等.高速列车不同头部形状的气动性能研究[J].湖南科技大学学报:自然科学版,2009,24(1):45-48.
[10]张亮,张继业,李田,等.超高速列车流线型头型多目标优化设计[J].机械工程学报,2017,53(2):106-114.
[11]刘涛,刘凤华,余以正,等.基于STAR-CCM+的高速列车空气动力学性能数值分析[J].大连交通大学学报,2013,34(2):24-27.
[12]姚拴宝,郭迪龙,杨国伟,等.高速列车气动阻力分布特性研究[J].铁道学报,2012,34(7):18-23.
[13]周丹,田红旗,鲁寨军.国产磁浮列车气动外形的优化[J].中南大学学报:自然科学版,2006(3):613-617.
[14]冯志鹏.高速列车气动性能与外形设计[D].成都:西南交通大学,2011.
[15]田红旗,高广军.270 km/h高速列车气动力性能研究[J].中国铁道科学,2003(2):17-21.
[16]张亮.高速列车气动外形优化设计研究[D].成都:西南交通大学,2017.
[17]梁习锋,田红旗.列车气动性能评估参数研究[J].中国铁道科学,2003,24(1):38-42.