Momentum Considerations in Hydraulic Jumps and Bores
Publication: Journal of Irrigation and Drainage Engineering
Volume 138, Issue 4
Abstract
A hydraulic jump is the turbulent transition from a high velocity into a slower flow. A related process is the hydraulic jump in translation. The application of the equations of conservation of mass and momentum in their integral form yields a series of relationships between the flow properties in front of and behind the jump. The effects of the cross-sectional shape and bed friction are investigated. The effect of the flow resistance yields a smaller ratio of conjugate cross-section areas for a given Froude number. The solutions are tested with some field measurements of tidal bores in natural channels, illustrating the range of cross-sectional properties in natural systems and irregular channels.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 138 • Issue 4 • April 2012
Pages: 382 - 385
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Jan 31, 2011
Accepted: Aug 17, 2011
Published online: Aug 19, 2011
Published in print: Apr 1, 2012
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