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The Role of Corner Vortices in the Design of Structures

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Abstract:

The sharp edges on bluff bodies (flat shapes) frequently cause the air flow around the bodies to separate and generate a vortex flow pattern which produces severe suction loadings in the separated flow region. This paper presents examples from full-scale flow studies around low-rise bluff bodied structures that illustrate the types of flow separation that can occur. The area of influence of the vortices generated from the edges of the buildings are assessed from surface pressure measurements; edge details can be used to mitigate against vortex generation.

Keywords: Bluff bodied structures; Cladding panels; Pressure distribution; Vortex patterns; Wind loads

Document Type: Research Article

DOI: http://dx.doi.org/10.2749/101686698780489568

Publication date: February 1, 1998

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    Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.

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