Investigation on Coherence Characteristics of Wind Pressure on Hemispherical domes

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題名:	Investigation on Coherence Characteristics of Wind Pressure on Hemispherical domes
作者:	Lo, Yuan-Lung;Fu, Chung-Lin;Wang, Chia-Kuo
貢獻者:	淡江大學土木工程學系;淡江大學風工程研究中心
關鍵詞:	Hemispherical Dome;Surface Pressure;Coherence
日期:	2013-12
上傳時間:	2013-12-02 18:33:22 (UTC+8)
摘要:	Systematic wind tunnel tests were conduct to investigate coherence characteristics of any two fluctuating wind pressures along the meridian on hemispherical domes under smooth and turbulent wind flows. Reynolds number was alternated from 6.6×104 to 1.9×106 for both flows. Contour plots of root-coherence values with respect to frequency and reference location were given to show only little inconsistency due to Reynolds number effect. On the other hand, approaching turbulence, simulated in turbulent flow, showed distinct differences, especially in the windward and dome apex region. A modified form proposed by Hui et al (2009) was applied for the approximation of root-coherences rather than Davenport’s proposed. It was concluded that not only the location of the reference tap but also the distance between two taps, can significantly determine the distribution features of coherences.
關聯:	Proceedings of The 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 9p.
顯示於類別:	[土木工程學系暨研究所] 會議論文

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