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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2014, Volume 55, Issue 6, Pages 107–113
(Mi pmtf1011)
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This article is cited in 4 scientific papers (total in 4 papers)
Comparison of theory and experiment in simulation of dam break in a rectangular channel with a sudden change in cross-sectional area
V. V. Degtyareva, V. V. Ostapenkob, O. A. Kovyrkinab, A. V. Zolotykha a Novosibirsk State Architecture and Civil Engineering University (Sibstrin) Novosibirsk, Novosibirsk, 630008, Russia
b Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
This paper, presents the results of comparison of theory and laboratory experiment for simulation of the wavy flows resulting from dam break on a sudden change in the rectangular cross-sectional area of a channel whose width is greater upstream than downstream. Exact self-similar solutions containing an heuristic parameter dependent on the total energy of the flow lost on the sudden change in cross-sectional area were obtained using the first approximation of the spatially one-dimensional theory of shallow water. It is shown that theoretical solutions agree quite well with the results laboratory experiments on the possible types of waves, the their propagation velocity, and asymptotic depth values behind their fronts.
Keywords:
shallow-water theory, sudden change in cross-sectional area, dam-break problem, self-similar solutions, laboratory experiment.
Received: 08.08.2013 Revised: 12.12.2013
Citation:
V. V. Degtyarev, V. V. Ostapenko, O. A. Kovyrkina, A. V. Zolotykh, “Comparison of theory and experiment in simulation of dam break in a rectangular channel with a sudden change in cross-sectional area”, Prikl. Mekh. Tekh. Fiz., 55:6 (2014), 107–113; J. Appl. Mech. Tech. Phys., 55:6 (2014), 999–1004
Linking options:
https://www.mathnet.ru/eng/pmtf1011 https://www.mathnet.ru/eng/pmtf/v55/i6/p107
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