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Peak wind loads under delta wing vortices on canopy roofs

Citation

Ginger, JD and Letchford, CW, Peak wind loads under delta wing vortices on canopy roofs, Journal of Wind Engineering & Industrial Aerodynamics, 43, (1) pp. 1739-1750. ISSN 0167-6105 (1992) [Refereed Article]

DOI: doi:10.1016/0167-6105(92)90585-X

Abstract

Pressure contour plots on pitched canopy roofs indicate that the largest pressures are experienced close to the leading edges and the ridge line at a wind orientation of ∼ 30°. Surface flow patterns and pressure contour plots identify the flow mechanisms causing these large pressures as flow separation and the formation of conical delta wing vortices. The correlation between fluctuating surface pressures is increased under the delta wing vortex. An eigenvalue analysis shows that the mechanisms contributing most to the large fluctuating pressures close to the leading edges are flow separation and delta wing vortex formation. Area averaged pressures close to the leading edges and the ridge line are substantially greater than the pressures on the rest of the roof. © 1992.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Other Engineering
Research Field:Engineering not elsewhere classified
Objective Division:Construction
Objective Group:Construction Planning
Objective Field:Civil Construction Planning
Author:Letchford, CW (Professor Chris Letchford)
ID Code:47499
Year Published:1992
Web of Science® Times Cited:3
Deposited By:Engineering
Deposited On:2007-09-15
Last Modified:2007-09-15
Downloads:0

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