横风环境列车外流场数值模拟及INTESIM软件的初步应用

打开文本图片集

中图分类号：U270.11;TB115.2 文献标志码：B

Outflow field analysis under train crosswind effect and preliminary application of INTESIM software

LIU Xinqiao1，MA Tianfang2a，WANG Dongping2a， ZHAO Jie

1.INTESIM（Dalian）Co.，Ltd.，Dalian16023，Liaoning，China；2.a.Colegeof Mechanical Enginering，b.Coegeof Roling Stock Engineering，Dalian Jiaotong University，Dalian 116O28，Liaoning，China）

Abstract：To help the localization of CAE software，focusing on the crosswind issue encountered in the open line operation of trains in the rail transit industry，a three-car high-speed trains is simulated using three-dimensional steady incompresble Reynolds time averaged N-S equation and standard k ε （20 turbulence model.Numerical simulation results of different crosswind conditions using INTESIM software is compared with the results of FLUENT software simulation under the same parameter setings. The results show that the pressure distribution on the car body surface and the speed distribution around the train by INTESIM software are consistent with the calculation results of FLUENT software，and the error of the pressure monitoring points on the train surface is not more than 10% ，which verifies that INTESIM software is accurate in the outflow field characteristics computation of the open line operation of trains.

Key words： crosswind； train； surface pressure ； numerical analysis ； benchmarking verification

0引言

在科技变革的大环境下，科技创新体系要不断完善，创新驱动发展战略要加快实施。（剩余4880字）