LESによる実在都市域での強風推定

DOI Web Site 被引用文献3件 参考文献29件

書誌事項

タイトル別名
  • LES ESTIMATION OF STRONG WIND IN ACTUAL URBAN AREA
  • LES ニ ヨル ジツザイ トシイキ デノ キョウフウ スイテイ コリツスル コウソウ タテモノ オ タイショウ ト シテ
  • —Targeting at wind data around an isolated high-rise building—
  • －孤立する高層建物を対象として－

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抄録

In order to validate the LES(large eddy simulation) model for strong wind in actual urban area, this research performs the direct comparison between wind data estimated by LES and full-scale measurement data. Generally, LES cannot evaluate the absolute wind velocity, but can only a relative value to the reference wind velocity. In order to introduce the absolute value, we employ the meteorological model(MM5). In this study, first, based on the observation data on the rooftop of the high-rise buildings and several surrounding ground-level points, we clarify the flow characteristics of strong winds during cyclogenesis. Second, we numerically simulated the mean wind speed and the maximum instantaneous wind speed and validated the LES method through the comparison with the observation data. Accordingly the applicability of the present LES model for an actual shape of urban area has been clarified.

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