Numerical Study of Unsteady Flowfield Around High Speed Trains Passing by Each Other
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概要
- 論文の詳細を見る
In order to study unsteady flowfield around high speed trains passing by each other, a three-dimensional inviscid numerical method based on three types of domain decomposition techniques is developed. Roe's FDS scheme is used for the space discretization, and LU-SGS method is adopted for the time integration. After validation of the code to a single track train/tunnel interaction problems with three dimensional tunnel configuration, the numerical simulations of the trains passing by on the double-track are performed for the 5 different cases using 3 basic parameters; e.g. nose shape, existence of tunnel, and train length. After the parametric study, variational parametric studies are carried out to understand the effects of the velocity of the train, the gap between the train and the blockage ratio. Firstly, train/tunnel interaction problems for double track railway system are investigated and aerodynamics loads histories during the crossing events -train/train interaction problem- are presented and discussed.
- 一般社団法人日本機械学会の論文
- 2001-08-15
著者
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Lee Dong
School of Materials Science and Engineering, Seoul National University
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Lee Dong
School Of Mechanical And Aerospace Engineering Seoul National University
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Lee Dong-ho
School Of Chemical And Biological Engineering Seoul National University
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HWANG Jaeho
Dept. of Aerospace Engineering, Seoul National University
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YOON Tae
Dept. of Aerospace Engineering, Seoul National University
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LEE Soo
School of Mechanical and Aerospace Engineering, Seoul National University
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Lee Dong
School Of Life Sciences & Biotechnology College Of Natural Sciences Kyungpook National Universit
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Hwang Jaeho
Dept. Of Aerospace Engineering Seoul National University
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Yoon Tae
Dept. Of Aerospace Engineering Seoul National University
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Yoon Tae-Seok
Dept. of Aerospace Engineering, Seoul National University
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