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Sökning: onr:"swepub:oai:research.chalmers.se:0b69bfda-a28c-4874-8684-88f7a6f01d4b" > On the aerodynamic ...

On the aerodynamic loads when a high speed train passes under an overhead bridge

Liang, Xifeng (författare)
Central South University, China
Li, Xiao Bai (författare)
Central South University, China
Chen, Guang (författare)
Central South University, China
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Sun, Bo (författare)
Central South University, China
Wang, Zhe (författare)
Xiong, Xiaohui (författare)
Central South University, China
Yin, Jing (författare)
Tang, Ming Zan (författare)
Central South University, China
Li, Xue Liang (författare)
Central South University, China
Krajnovic, Sinisa, 1970 (författare)
Chalmers University of Technology,Chalmers tekniska högskola
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 (creator_code:org_t)
2020
2020
Engelska.
Ingår i: Journal of Wind Engineering and Industrial Aerodynamics. - 0167-6105. ; 202
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • The aerodynamic loads on the overhead bridge bottom surface induced by train passage are reported in this paper. Both moving model test and numerical simulation approaches at the 1:20 scale are used. The numerical work is validated through both mesh independence tests and comparison with experimental data. Typical pressure variation curves are plotted and compared with previous studies. The peak pressure values’ dependence on the Reynolds number is considered through four sets of experiments with different train running speeds. The peak pressure coefficient distribution law for the bridge bottom surface is presented. Differences in the pressure distribution in different bridge bottom areas are explained based on more detailed flow field information. The influence of the bridge height on the aerodynamic load magnitude and time interval is presented. Moreover, the application of the CEN Standard to practical engineering issues is discussed.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering (hsv//eng)

Nyckelord

Overhead bridge
Aerodynamic loads
Moving model test
Numerical simulation

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