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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/39285

    Title: Fluctuation lift force on groups of circular cylindes in a turbulent boundary layer
    Other Titles: 邊界層流中圓柱體群所受之橫向擾動性載重
    Authors: 盧博堅;Lu, Po-chien
    Contributors: 淡江大學水資源及環境工程學系
    Date: 1988-05-27
    Issue Date: 2010-01-11 16:48:01 (UTC+8)
    Publisher: 臺中市:中興大學
    Abstract: An experimental study of the fluctuating lift force on groups of two and three cylinders of finite height immersed in a turbulent boundary layer at subcritical Reynolds number has been carried out in a laboratory wind tunnel. A technique which makes use of a pneumatic averaging manifold system has been used to measure the fluctuating force at various levels on an instrumented cylinder. Measurements of RMS lift coefficients and mode generalized lift force spectra in a range of spacing and angle attack are presented. The interference levels depend strongly on the spacing and angle attack.
    實驗係以壓力氣相平均技巧對圓柱模型做各高度水平層的瞬時擾動性載重量測。各層的擾動性數 據可用來計算其均方根值橫向載重係數並合成為一般化振態橫向載重頻譜。此係數和頻譜均顯示出各圓柱間相互干擾的程度與圓柱間距及流向攻角有密切關係。
    Relation: 第四屆水利工程研討會論文集=Proceedings of 4th Conference on Hydraulic Engineering,頁389-404
    Appears in Collections:[水資源及環境工程學系暨研究所] 會議論文

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    Fluctuation lift force on groups of circular cylindes in a turbulent boundary layer.pdf摘要503KbAdobe PDF221View/Open
    邊界層流中圓柱體群所受之橫向擾動性載重.pdf摘要328KbAdobe PDF154View/Open

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