such as Lauber and Hager reported their experiments on dam-break flows in a horizontal and sloping channel (Lauber and Hager, a, b). W.H. Hager and G. Del Giudice, “Movable bed roughness in alluvial rivers – Discussion”, . G. Lauber and W.H. Hager, “EXPERIMENTS TO DAMBREAK WAVE. Lauber and Hager () derived a solution from the shallow water equations with friction slope in the source term, subjected to the initial condition CDF T=21/2 .

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Articles Case law Profiles. Return articles dated between. In addition, the maximum water level labuer flow velocity at the downstream laubeer are mainly controlled by the initial water head setting, while the duration of the large values is influenced by the reservoir length. Hydrodynamic formulae proposed by Lauber and Hager [1] are not applicable for the wet-bed condition, although their solution of wave profiles for the initial dry-bed condition performs well at the location farther from the gate.

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The non-dimensional average front velocity of the wet-bed condition, which mainly depends on the initial water head setting, is smaller than that of the dry-bed case.

Based on a literature review, the conditions required for Froude similarity are first derived. In this study, a series of dam-break experiments was carried out to investigate the jager of the initial downstream hafer depth, water head settings, and upstream reservoir length on the dam-break wave movement.

Considering the requirements for precise data measurement with high temporal resolution, the synchronization of different instruments was realized based on high-speed camera recording.

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Experiments to dambreak wave: My profile My library Alerts Metrics. Preview 2 pages 0. Also, the drying front is computed and the effect of viscosity is analyzed. September 16, Accepted: Views over last 60 days: Return articles authored by.

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Then, the positive and negative wave fronts are analytically determined, based on the characteristic equations. The positive and negative wave fronts are determined based on the characteristic equations.

Cited by Related articles All 6 versions. Dambreak flows in a smooth, rectangular channel are considered. Cited by 62 Related articles All 3 versions.

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November 28, Published: Even with the same initial water head setting, the water level and flow velocity variations of the dam-break wave propagating downstream on hzger wet bed show noteworthy differences in flow characteristics compared to the initial dry bed, caused by the interactions between the upstream and downstream water. In all experiments, the abrupt rupture on an absolutely dry tailwater channel was modelled. Dambreak waves in a smooth rectangular and horizontal channel are described.

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Experimental Study on Dam-Break Hydrodynamic Characteristics Under Different Conditions

Further, the effect of the relative reservoir length on the wave maximum is specified and a novel dimensionless coordinate X is introduced, that accounts for both relative reservoir length and non-dimensional tailwater location.

The instantaneous water level and flow velocity were measured at two specified downstream locations.

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