摘要
基于计算流体力学软件Fluent,对青岛新机场高速列车过站的隧道空气动力学作用进行了数值模拟。讨论了隧道列车空气动力学在工程应用中需考虑的关键问题,分析了列车风进入隧道过程中的压力场分布,对比讨论了地下空间的挡墙对列车空气动力作用的影响。结果表明,青岛新机场地下空间由于挡墙的存在,列车空气动力作用比一般隧道空气动力问题更加复杂,列车进入挡墙入口后,压力峰值更大;同断面挡墙内外侧压力变化趋势一致,挡墙内压力峰值略大。
Based on Fluent soft platform,train⁃induced airflow of Qindao New Airport is simulated by computational fluid dynamic method.The key points on simulation were discussed.The flow field characteristics of one train passing through the underground station are analyzed.The pressure time history is influenced by two walls in the tunnel,the comparison of pressure time histories is carried out between points in and out of the wall.The result shows that the train⁃induced airflow is more complicated caused by the wall in the tunnel.When the train entered the entrance,the peak pressure raises up.Pressures inside and outside of the center tunnel space are nearly the same,and inside peak pressure is slightly larger than outside.
作者
李翔
何连华
王艺博
岳煜斐
王烁
陈凯
张高明
刘枫
Li Xiang;He Lianhua;Wang Yibo;Yue Yufei;Wang Shuo;Chen Kai;Zhang Gaoming;Liu Feng(Qingdao International Airport Group Co.Ltd,Qingdao 266108,China;China Academy of Building Research,Beijing 100013,China)
出处
《建筑科学》
CSCD
北大核心
2023年第5期187-192,共6页
Building Science
关键词
数值模拟
列车风
动网格
压力时程
numerical simulation
train⁃induce airflow
moving mesh
pressure time history
