Evaluation of wind gust at pedestrian space with a small thermistor anemometer in wind tunnel experiment

DOI

Bibliographic Information

Other Title
  • 小型サーミスタ風速計による風洞実験での歩行者空間の瞬間風速評価

Abstract

This study aims to measure the gust factor for the pedestrian wind environment by the small thermistor anemometer in the wind tunnel experiment. Firstly, the non-directionality and bias of the probe of the small thermistor anemometer were investigated. Then, the measurement performance by the small thermistor anemometer for capturing the peak wind speed at the pedestrian-level around an isolated building was tested. It was found that the thermistor anemometer can accurately capture the turbulence fluctuations up to approximately 5 Hz. In strong wind regions near the side wall of the building, the peak factor and gust factor measured by the thermistor anemometer were 3.0 and 1.5, respectively. The measured factors were in good agreement with that obtained by large-eddy simulation. Moreover, the measured gust factor in this study was found to qualitatively agree with the empirical equation of the gust factor in the full field measurement. In future study, the relation between the peak gust and the 3s moving average period, and the underestimation of the gust factor in low wind region will be further investigated.

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Details 詳細情報について

  • CRID
    1390288148340445056
  • NII Article ID
    130008043918
  • DOI
    10.14887/windengresearch.26.0_139
  • ISSN
    24355429
    24354384
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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