Flow around Bridge Piers
Publication: Journal of Hydraulic Engineering
Volume 124, Issue 3
Abstract
This paper presents the results of a laboratory study on flow past cylindrical piers placed on smooth, rough, and mobile beds. Experimental results are presented on the flow in the plane of symmetry, including the frontal downflow and the effects of bed roughness and the scour hole on it. The Clauser-type defect scheme describes the velocity profiles better than the log-law and defect law. Frontal downflows as large as 95% of the approach flow were observed. Experimental results are also presented on the deflected flow and bed shear stress field. Bed roughness increased the magnitude of bed shear stress and the area over which the shear amplification was felt and also resisted the skewing of the flow near the bed, thus leading to smaller yaw angles of the bed shear vectors.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 124 • Issue 3 • March 1998
Pages: 288 - 300
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Mar 1, 1998
Published in print: Mar 1998
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