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    題名: Cross Spectra of Wind Pressures on Domed Roofs in Boundary Layer Wind Tunnel
    作者: 羅元隆
    貢獻者: 淡江大學土木工程學系
    關鍵詞: Domed roof, Roof curvature;Wind pressure fluctuation;Cross spectrum;Root-coherence;Phase distribution
    日期: 2012-09-02
    上傳時間: 2013-03-11
    摘要: This research intends to investigate the cross spectrum characteristics of wind pressure fluctuations on the surface along the meridian of domed roofs under turbulent wind flows. Wind pressure experiments of domed roofs are conducted considering two roof curvatures and three heights of side walls. From the experimental results, various distribution types of co-coherences are examined and the traditional exponential decaying form is shown insufficient to approximate the general characteristics of co-coherences. By combining the proposed models by Uematsu et al and Kanda et al and also a phase shift parameter included, the approxi-mation model is then improved to represent the observed coherences generally.
    關聯: Proceedings of The Seventh International Colloquium on Bluff Body Aerodynamics and Applications, 10p.
    顯示於類別:[土木工程學系暨研究所] 會議論文

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