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http://dx.doi.org/10.3741/JKWRA.2008.41.7.669

Analyses of Overtopping Velocity using Analytical Solution(Ritter's Solution) of Dam-Break Flow  

Ryu, Yong-Uk (River and Coast Research Division, Korea Institute of Construction Technology)
Lee, Jong-In (River and Coast Research Division, Korea Institute of Construction Technology)
Kim, Young-Taek (River and Coast Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korea Water Resources Association / v.41, no.7, 2008 , pp. 669-679 More about this Journal
Abstract
The present study examines similarity of behavior between an overtopping wave generated by a plunging wave and a dam-break flow through hydraulic model tests. The dam-break flow has been employed to estimate the overtopping effect on the basis of the dam-break flow's behavior similar to the overtopping. In this study, the overtopping velocity was measured by a modified image technique using bubble and bubble texture images called bubble image velocitmetry. From the measurements, the vertical profiles of horizontal overtopping velocity at cross-sections along the deck were presented and discussed. Maximum velocity and depth-averaged velocity at each cross-section were compared with an analytical solution solving the dam-break flow, Ritter's solution. The initial water depth of importance for the solution was determined from the tested wave condition and the overtopping measurements. The comparison shows that the solution with the initial water depth estimated using the front velocity of the overtopping wave is in good agreements with the measurements.
Keywords
hydraulic model test; overtopping; dam-break flow; analytical solution; bubble image velocimetry;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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