北京交通大学学报2017，Vol.41Issue(1)：56-61,67,7.DOI:10.11860/j.issn.1673-0291.2017.01.009
高速列车隧道内会车时气动舒适性研究
Study on aerodynamic comfort of high-speed trains passing each other through a tunnel
摘要
Abstract
Based on N-S equation and k-ε two equation turbulence model,simulation analyses are conducted on pressure changes inside trains and influences of different parameters on the riding comfort when two high-speed trains passing each other through a tunnel by using finite element method.The results show that the transient pressure inside trains is influenced by the place of trains passing each other,the length of trains,the speed of trains and the sealing index.The maximum transient pressure appears when two trains passing each other in the center of the tunnel when the length of trains,the speed of trains and the sealing index are the same.And compared to the transient pressure of trains with shorter length,that of trains with longer length is larger when the place of trains passing each other,the speed of trains and the sealing index stay the same.The transient pressure inside trains can satisfy the evaluation standard of 1.25kPa/3s under various operating conditions in this paper when the sealing index is higher than 15s.关键词
高速列车/隧道工程/会车/空气动力学/舒适性/数值计算Key words
high-speed train/tunnel engineering/trains passing each other/aerodynamic/comfort/numerical simulation分类
交通工程引用本文复制引用
闫亚光,杨庆山..高速列车隧道内会车时气动舒适性研究[J].北京交通大学学报,2017,41(1):56-61,67,7.基金项目
国家自然科学基金重大研究计划(91215302)National Natural Science Foundation of China(91215302) （91215302）
