Influence of the topological structures of the nose of high-speed maglev train on aerodynamic performances

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Influence of the topological structures of the nose of high-speed maglev train on aerodynamic performances
	Wang YT(王业腾); Sun ZX(孙振旭)
	2021
会议日期	10 August 2021 到 12 August 2021
会议地点	Virtual, Online
关键词	Aerodynamic performance High-speed Maglev train Topological structures VMF parameterization method Wake characteristics
英文摘要	In the past few years, considerable attention has been paid to high-speed maglev train in the field of rail transit. The design speed of the high-speed maglev train is 600km/h, which is significantly higher than that of the high-speed train. With the increase in operating speed, high-speed maglev trains have higher requirements for aerodynamic shape. Superior performance, the beautiful aerodynamic shape is an important direction for the development of high-speed maglev trains. Based on the Vehicle Modeling Function (VMF) method, the current research has developed a parametric shape design method suitable for the aerodynamic shape of the maglev train s nose. This method can obtain different topological structures of the high-speed maglev train s nose. The current research uses this method to generate four maglev train noses with large appearance differences and uses these train noses to construct four simplified high-speed maglev models. Then this study numerically analyzes the flow fields of different train models and compares the differences in aerodynamic performance including aerodynamic drag, aerodynamic lift and wake characteristics. The Q-criterion is used to study the vortex structure and mechanism of different train wake regions, and the vortex propagation process is studied by turbulence kinetic energy (TKE). Studying the difference in the aerodynamic force of different topological shapes will help to improve the aerodynamic performance of high-speed maglev trains. © 2021 American Society of Mechanical Engineers (ASME). All rights reserved.
会议录	American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
语种	英语
URL标识	查看原文
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/87797]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.University of Chinese Academy of Sciences, UCAS, Beijing, China 2.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Wang YT,Sun ZX. Influence of the topological structures of the nose of high-speed maglev train on aerodynamic performances[C]. 见:. Virtual, Online. 10 August 2021 到 12 August 2021.