TECHNICAL NOTES
Sep 1, 1996

Transition from Hydraulic Jump to Open Channel Flow

Publication: Journal of Hydraulic Engineering
Volume 122, Issue 9

Abstract

This technical note presents the results of a laboratory study of the transition region from the end of a hydraulic jump to fully developed open channel flow. The velocity profile changes from that of a wall jet to the semilogarithmic form of open channel flow. In this region, the bed shear stress continues to decrease rapidly to eventually become constant. The intensity of flow on the centerplane decreases continuously to attain the relevant open channel value. The length of this transition region was found to be approximately equal to 10 times the tailwater depth for the range of Froude numbers studied, which varied from 3.87 to 10.48.

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References

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Hager, W. H. (1992). Energy dissipators and hydraulic jump, Kluwer Academic Publishers, Dordrecht, The Netherlands.
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Rajaratnam, N. (1967). Hydraulic jumps in advances in hydroscience, 4, V. T. Chow, ed., Academic Press, New York, N.Y., 197–280.
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Rajaratnam, N., and Muralidhar, D.(1968). “Prandtl tube as Preston tube.”Civ. Engrg. and Public Works Rev., 63(5), 542.
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Go to Journal of Hydraulic Engineering
Journal of Hydraulic Engineering
Volume 122Issue 9September 1996
Pages: 526 - 528

History

Published online: Sep 1, 1996
Published in print: Sep 1996

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Authors

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S. Wu
Res. Assoc., Dept. of Civ. Engrg., Univ. of Alberta, Edmonton, Alberta, T6G 2G7, Canada.
N. Rajaratnam, Member, ASCE
Prof., Dept. of Civ. Engrg., Univ. of Alberta, Edmonton, Alberta, Canada.

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