LES ESTIMATION OF WIND LOADING ON HIGH-RISE BUILDING SURROUNDED BY OTHER BUILDINGS

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  • YOSHIKAWA Masaru
    Manager, Technology Center, Taisei Corp., M.Eng.
  • TAMURA Tetsuro
    Prof., Dept. of Environmental Science and Technology, Tokyo Institute of Technology, Dr.Eng.

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Other Title
  • 周辺街区が再現された高層建物モデルのLES風荷重評価
  • 周辺街区が再現された高層建物モデルのLES風荷重評価 : 実市街地を対象としたCFD建築耐風設計(その1)
  • シュウヘンガイク ガ サイゲン サレタ コウソウ タテモノ モデル ノ LES カゼカジュウ ヒョウカ : ジツ シガイチ オ タイショウ ト シタ CFD ケンチク タイフウ セッケイ(ソノ 1)
  • －実市街地を対象としたCFD建築耐風設計（その１）－
  • －CFD wind-resistant design for buildings in a real urban district (Part 1)－

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Abstract

 Large Eddy Simulation (LES) is expected to be adopted as an effective technique to evaluate wind load on buildings for wind-resistant design. For numerical prediction of wind pressures by LES, unstructured grid system is effective in terms of flexibility in generating computed models. In this paper, the fluctuating wind pressures on a high-rise building in a real urban district are examined using unstructured LES. Especially, focusing on the pressure distributions influenced by surrounding buildings, the method of model generation for accurate prediction is shown and the flow fields are studied to elucidate the mechanism of peak pressure occurrence.

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