Wind and Structures

  • 제12권3호
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  • Pages.219-237
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  • 2009
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Large-eddy simulation and wind tunnel study of flow over an up-hill slope in a complex terrain

  • Tsang, C.F. (CLP Wind/Wave Tunnel Facility, The Hong Kong University of Science and Technology) ;
  • Kwok, Kenny C.S. (CLP Wind/Wave Tunnel Facility, The Hong Kong University of Science and Technology) ;
  • Hitchcock, Peter A. (CLP Wind/Wave Tunnel Facility, The Hong Kong University of Science and Technology) ;
  • Hui, Desmond K.K. (Transport Department)
  • 투고 : 2008.03.15
  • 심사 : 2009.03.05
  • 발행 : 2009.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study examines the accuracy of large-eddy simulation (LES) to simulate the flow around a large irregular sloping complex terrain. Typically, real built up environments are surrounded by complex terrain geometries with many features. The complex terrain surrounding The Hong Kong University of Science and Technology campus was modelled and the flow over an uphill slope was simulated. The simulated results, including mean velocity profiles and turbulence intensities, were compared with the flow characteristics measured in a wind tunnel model test. Given the size of the domain and the corresponding constraints on the resolution of the simulation, the mean velocity components within the boundary layer flow, especially in the stream-wise direction were found to be reasonably well replicated by the LES. The turbulence intensity values were found to differ from the wind tunnel results in the building recirculation zones, mostly due to the constraints placed on spatial and temporal resolutions. Based on the validated mean velocity profile results, the flow-structure interactions around these buildings and the surrounding terrain were examined.

키워드

참고문헌

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피인용 문헌

  1. The appropriate shape of the boundary transition section for a mountain-gorge terrain model in a wind tunnel test vol.20, pp.1, 2015, https://doi.org/10.12989/was.2015.20.1.015
  2. A numerical simulation of flow field in a wind farm on complex terrain vol.13, pp.4, 2010, https://doi.org/10.12989/was.2010.13.4.375