Wind and Structures

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Study on the micro-scale simulation of wind field over complex terrain by RAMS/FLUENT modeling system

  • Li, Lei (Shenzhen National Climate Observatory, Shenzhen Meteorological Bureau) ;
  • Zhang, Li-Jie (Shenzhen National Climate Observatory, Shenzhen Meteorological Bureau) ;
  • Zhang, Ning (School of Atmospheric Sciences, Nanjing University) ;
  • Hu, Fei (State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences) ;
  • Jiang, Yin (Shenzhen National Climate Observatory, Shenzhen Meteorological Bureau) ;
  • Xuan, Chun-Yi (Beijing Municipal Climate Center, Beijing Meteorological Bureau) ;
  • Jiang, Wei-Mei (School of Atmospheric Sciences, Nanjing University)
  • Received : 2009.06.15
  • Accepted : 2010.05.19
  • Published : 2010.11.25
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Abstract

A meteorological model, RAMS, and a commercial computational fluid dynamics (CFD) model, FLUENT are combined as a one-way off-line nested modeling system, namely, RAMS/FLUENT system. The system is experimentally applied in the wind simulation over a complex terrain, with which numerical simulations of wind field over Foyeding weather station located in the northwest mountainous area of Beijing metropolis are performed. The results show that the method of combining a meteorological model and a CFD model as a modeling system is reasonable. In RAMS/FLUENT system, more realistic boundary conditions are provided for FLUENT rather than idealized vertical wind profiles, and the finite volume method (FVM) of FLUENT ensures the capability of the modeling system on describing complex terrain in the simulation. Thus, RAMS/FLUENT can provide fine-scale realistic wind data over complex terrains.

Keywords

References

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