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 en
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20140323~20140323
通訊作者
國別 TWN
公開徵稿
出版型式
出處 International Wind Engineering Symposium and Advanced School on Wind Engineering 2014
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/113206 )