Research Article
Feb 1976
Dimensionless Solution of Dam-Break Flood Waves
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 102, Issue 2
Abstract
A mathematical model is presented for the prediction of flood wave resulting from the instantaneous and complete failure of a dam and subsequent emptying of the reservoir into a prismatic dry channel having a parabolic cross section of arbitrary degree. It consists of the numerical integration of the characteristic equations over the irregular grid of characteristic lines using a predictor-corrector scheme. The solution is advanced towards the wave front by a gradual refinement of the characteristics net. Over a very short region comprising the wave tip, the solution is extended to the wave front, characterized by zero depth, using a simplified form of the momentum equation resulting from physical considerations in the tip region. Computed results are compared with experimental data obtained by others. Corroboration by the experimental results is considered adequate. Dimensionless graphs of practically important flood characteristics were prepared for a wide range of channel shape, size, slope and roughness, and dam height.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 2 • February 1976
Pages: 171 - 184
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Feb 1976
Published online: Feb 3, 2021
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Authors
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John G. Sakkas, AM.ASCE
Visiting Prof., School of Civ. Engrg., Univ. of Patrai, Patrai, Greece
Theodor Strelkoff, M.ASCE
Prof. of Water Sci. and Civ. Engrg., Univ. of California at Davis, Davis, Calif
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.