A scale-model experiment of surface temperature characteristics using an infrared radiation camera

DOI IR (HANDLE) Open Access
  • Oliveira Joao Tales
    Department of Energy and Environmental Engineering : PhD Candidate
  • Hagishima Aya
    Department of Energy and Environmental Engineering : Associate Professor
  • Tanimoto Jun
    Department of Energy and Environmental Engineering : Professor

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Description

An outdoor measurement was performed during fine weather with a scale-model array of cubical obstacles (size 100mm, 25% packing density, lattice-type square layout) that represent an idealized urban tissue. Surface temperature was recorded with high-frequency (10Hz) infrared camera, along with wind speed and solar radiation. Complementarily, air temperature was also measured at three heights in the near-wall region of a block surface using fine-wire thermocouples. Results showed the similarity of distribution between surface temperature and scalar transfer coefficient. We also found that 10s averaging period may be appropriate for the analysis of surface temperature fluctuation affected by turbulent air flow. In the near-wall region under particularly calm wind condition, air temperature fluctuation caused by a hot plume arising from the warmed surface was observed. The method presented in this study seems to be a promising tool to analyze surface temperature characteristics of scale-models in urban climate studies.

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Details 詳細情報について

  • CRID
    1390572174790416256
  • NII Article ID
    120002741630
  • NII Book ID
    AA1147319X
  • DOI
    10.15017/18934
  • HANDLE
    2324/18934
  • Text Lang
    ja
  • Article Type
    departmental bulletin paper
  • Data Source
    • JaLC
    • IRDB
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Allowed

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