Flow Field at a Vertical-Wall Abutment
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 12
Abstract
Experiments were conducted to measure the three-dimensional turbulent flow field, using the acoustic Doppler velocimeter, at a short vertical-wall abutment (ratio of abutment length to approach flow depth less than unity) before and after the development of a scour hole under a clear water scour condition. In the upstream, the presentation of flow field through vectors at vertical sections shows a primary vortex associated with the downflow. In the downstream, the upward flow is comprised of with irregularities owing to the vortex shedding. The flow separation near the bed and within the scour hole is evident from the turbulent kinetic energy distribution. Using Reynolds stresses, the bed shear stresses are calculated.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 12 • December 2005
Pages: 1126 - 1135
Copyright
© 2005 ASCE.
History
Received: Apr 18, 2003
Accepted: May 6, 2005
Published online: Dec 1, 2005
Published in print: Dec 2005
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