Flow Upstream of Orifices and Sluice Gates
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 2
Abstract
Potential flow solutions of a point/line sink are extended to study the velocity field upstream of a finite-size orifice and sluice gate. It is found that, in the “near field” zones, the iso-velocity surfaces appear to be semiellipsoidal; while in the “far field” zones they become hemispheres. The shape and size of the orifice/sluice gate were found to be of no effect on the flow behavior beyond a certain distance. The development of velocity profile away from the orifice and sluice gate is examined, and the effects of water depth are studied. The results of this study compare very well with other numerical and experimental studies, and provide a general understanding of the flow field upstream of orifices and sluice gates.
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Acknowledgment
The writers are grateful to Yanming Zhang for doing some preliminary work on the use of distributed line sinks for the sluice gate flow in a class project report some years ago.
References
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 2 • February 2005
Pages: 127 - 133
Copyright
© 2004 ASCE.
History
Received: May 23, 2003
Accepted: Jul 21, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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