高速列车通过连通开孔隧道的气动 特性数值仿真研究
高畅1李田2张继业2
Numerical Simulation of Aerodynamic Characteristics of High-speed Train Passing through Tunnel with Perforations
GAO ChangLI TianZHANG Jiye
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作者信息:1.1.四川省轨道交通投资有限责任公司， 610031， 成都；
2.2.西南交通大学牵引动力国家重点实验室， 610031，成都
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Affiliation:Sichuan Railway Transportation Investment Co., Ltd., 610031, Chengdu, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.07.005
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中图分类号/CLCN:U451+.3
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栏目/Col:研究报告
摘要:
为了减缓高速列车通过隧道引起的压力波动，研究了联络通道对高速列车通过隧道时压力波特性的影响。建立了3节编组高速列车数值仿真计算模型，基于三维非定常可压缩NavierStokes方程，以及kε方程湍流模型和滑移网格技术，数值模拟了高速列车通过联络通道时隧道的气动特性，研究了设置联络通道对隧道压力波的影响及不同的通道间距对隧道压力波动的影响。研究结果表明：与无联络通道隧道相比，列车通过连通开孔隧道的气动特性得到明显改善；通道对初始压力上升、下降的抑制效果更为明显，对膨胀波的抑制作用更为突出。联络通道的设置使隧道压力波的波形呈现局部锯齿状。
Abstracts:
In order to slow down the pressure fluctuation caused by high-speed train passing through tunnel, the influence of the connected aisle on the pressure wave characteristics of high-speed train passing through tunnel is studied. A numerical simulation model for three-section formation high-speed train is established. Based on three-dimensional, unsteady, compressible Navier-Stokes equation and k-ε two-equation turbulence model and slip grid technology, the aerodynamic characteristics of high-speed train passing through tunnel with connected aisle are numerically simulated. Research results show that compared to tunnel without connected aisle, the aerodynamic characteristics of train passing through tunnel with connected aisle is evidently improved; tunnel with connected aisle shows more visible effect on the suppression of initial pressure rise and fall, and the suppression of the expansion wave is more prominent; setting connected aisle makes the pressure wave waveform partially jagged.
引文 / Ref:
高畅，李田，张继业.高速列车通过连通开孔隧道的气动特性数值仿真研究[J].城市轨道交通研究，2021，24(07):19.
GAO Chang，LI Tian，ZHANG Jiye.Numerical simulation of aerodynamic characteristics of high-speed train passing through tunnel with perforations[J]. Urban Mass Transit，2021，24( 7 )：19.
GAO Chang，LI Tian，ZHANG Jiye.Numerical simulation of aerodynamic characteristics of high-speed train passing through tunnel with perforations[J]. Urban Mass Transit，2021，24( 7 )：19.
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