Wind and Structures

  • 제24권2호
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  • Pages.171-184
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  • 2017
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wind tunnel tests on flow fields of full-scale railway wind barriers

  • Su, Yang (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Xiang, Huoyue (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Fang, Chen (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Wang, Lei (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Li, Yongle (Department of Bridge Engineering, Southwest Jiaotong University)
  • 투고 : 2016.06.12
  • 심사 : 2016.12.06
  • 발행 : 2017.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The present study provides a deeper understanding of the flow fields of a full-scale railway wind barriers by means of a wind tunnel test. First, the drag forces of the three wind barriers were measured using a force sensor, and the drag force coefficients were compared with a similar scale model. On this basis, the mean wind velocity and turbulence upwind and downwind of the wind barriers were measured. The effects of pore size and opening forms of the wind barrier were discussed. The results show that the test of the scaled wind barrier model may be unsafe, and it is suitable to adopt the full-scale wind barrier model. The pore size and the opening forms of wind barriers have a slight influence on the flow fields upwind of the wind barrier but have some influences on the flow fields and power spectra downwind of the wind barrier. The smaller pore size generates a lower turbulence density and value of the power spectrum near the wind barrier, and the porous wind barriers clearly provide better shelter than the bar-type wind barriers.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Sichuan Province Youth Science and Technology Innovation Team

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