Research Article
Aug 1972
Effects of Inflow Condition on Hydraulic Jump
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 98, Issue 8
Abstract
The particular aspect of the jump phenomenon considered in the paper concerns the condition of inflow, i.e., the state of flow development of the supercritical stream. Based on an unconventional concept of longitudinal extent, the hydraulic jump in a horizontal, smooth-walled channel of rectangular cross section is studied both analytically and experimentally. It is shown that jumps with developed inflow are longer, lower and subject to higher and more uniformly distributed skin friction than jumps with undeveloped inflow. The latter have shear distributions which reveal a tendency toward separation with increasing Froude number. The trend is verified by the observed behavior of jumps with undeveloped inflow at Froude number as large as 30. Semi-empirical, closed-form relationships between sequent depth ratio and Froude numbers are derived and checked against experimental evidence.
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Published In
Journal of the Hydraulics Division
Volume 98 • Issue 8 • August 1972
Pages: 1367 - 1385
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Aug 1972
Published online: Feb 3, 2021
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Authors
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Hans J. Leutheusser, M.ASCE
Prof., Dept. of Mech. Engrg., Univ. of Toronto, Toronto, Ontario, Canada
Viswanathan C. Kartha
Assoc. Master, Sir Sandford Fleming College, Lindsay, Ontario, Canada
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