教師資料查詢 | 類別: 會議論文 | 教師: 羅元隆 LO, YUAN-LUNG (瀏覽個人網頁)

標題:Coherence Characteristics of Pressure Fluctuations on Hemispherical Dome
學年102
學期2
發表日期2014/03/23
作品名稱Coherence Characteristics of Pressure Fluctuations on Hemispherical Dome
作品名稱(其他語言)
著者Yuan-Lung Lo; Tzu-Ting Hsiao
作品所屬單位
出版者
會議名稱International Wind Engineering Symposium and Advanced School on Wind Engineering 2014
會議地點Taipei, Taiwan
摘要Two systematic wind tunnel tests were conduct to investigate coherence characteristics of fluctuating wind
pressures along the meridian on hemispherical domes due to Reynolds number effect and roof curvature effect.
Reynolds number was first alternated from 6.6×104
to 1.9×106
under smooth and boundary layer flows. Rootcoherences
with respect to frequency and location were calculated to show how the Reynolds number effect
changes the coherence distribution, especially when in approaching turbulent flows. Secondly, the roof curvature
of the hemispherical dome was changed by f/D (height/span) from 0.5 to 0.1 to see the roof curvature effect. A
modified form proposed by Hui et al (2009) was applied to present a more compact observation in a parametric
study way rather than by Davenport’s proposed. It was finally concluded that not only the location of the
pressure but also the distance between two taps, can significantly determine the distribution features of
coherences.
關鍵字HEMISPHERICAL DOME;PRESSURE FLUCTUATION;COHERENCE
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20140323~20140323
通訊作者
國別中華民國
公開徵稿
出版型式
出處International Wind Engineering Symposium and Advanced School on Wind Engineering 2014
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