COMPUTATIONAL FLUID DYNAMICS SIMULATION OF INDOOR CLIMATE IN LOW ENERGY BUILDINGS: COMPUTATIONAL SET UP
作者: Daniel RISBERG Lars WESTERLUND and J. Gunnar I. HELLSTROM
刊名: Thermal Science, 2017, Vol.21 (5), pp.1985-1998
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI150604167R
关键词: CFD simulationcomputational set upindoor climatelow energy buildingsturbulence modelsgrid sizeradiationconvectionradiatornear wall treatment
原始语种摘要: In this paper CFD was used for simulation of the indoor climate in a part of a low energy building. The focus of the work was on investigating the computational set up, such as grid size and boundary conditions in order to solve the indoor climate problems in an accurate way. Future work is to model a complete building, with reasonable calculation time and accuracy. A limited number of grid elements and knowledge of boundary settings are therefore essential. An accurate grid edge size of around 0.1 m was enough to predict the climate according to a grid independency study. Different turbulence models were compared with only small differences in the indoor air velocities and temperatures. The models show that radiation between building surfaces has a large impact on the temperature field...
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关键词翻译
关键词翻译
  • accurate 精确的
  • independency 独立性
  • indoor 户内的
  • computational 计算的
  • building 大楼
  • outdoor 户外的
  • climate 气候
  • temperature 温度
  • appropriate 适当的
  • solve