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Characteristics of Undular Hydraulic Jumps: Experiments and Analysis


Montes, JS and Chanson, H, Characteristics of Undular Hydraulic Jumps: Experiments and Analysis, Journal Of Hydraulic Engineering, 124, (2) pp. 192-205. ISSN 0733-9429 (1998) [Refereed Article]

DOI: doi:10.1061/(ASCE)0733-9429(1998)124:2(192)


The writers measured velocity, pressure and energy distributions, wavelengths, and wave amplitudes along undular jumps in a smooth rectangular channel 0.25 m wide. In each case the upstream flow was a fully developed shear flow. Analysis of the data shows that the jump has strong three-dimensional features and that the aspect ratio of the channel is an important parameter. Energy dissipation on the centerline is far from negligible and is largely constrained to the reach between the start of the lateral shock waves and the first wave crest of the jump, in which the boundary layer develops under a strong adverse pressure gradient. A Boussinesq-type solution of the free-surface profile, velocity, and energy and pressure distributions is developed and compared with the data. Limitations of the two-dimensional analysis are discussed.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Civil engineering
Research Field:Water resources engineering
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in philosophy and religious studies
UTAS Author:Montes, JS (Dr Jose Montes)
ID Code:13438
Year Published:1998
Web of Science® Times Cited:83
Deposited By:Civil and Mechanical Engineering
Deposited On:1998-08-01
Last Modified:2011-08-08

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