Gate-opening criterion for generating dam-break flow in non-rectangular wet bed channels
dc.contributor.author | Yang, S. | |
dc.contributor.author | Wang, B. | |
dc.contributor.author | Guo, Yakun | |
dc.contributor.author | Zhang, J. | |
dc.contributor.author | Chen, Y. | |
dc.date.accessioned | 2021-04-09T14:22:28Z | |
dc.date.available | 2021-04-09T14:22:28Z | |
dc.date.issued | 2020-11 | |
dc.identifier.citation | Yang S, Wang B, Guo Y et al (2020) Gate-opening criterion for generating dam-break flow in non-rectangular wet bed channels. Energies. 13(23): 6280. | |
dc.identifier.uri | http://hdl.handle.net/10454/18422 | |
dc.description | Yes | |
dc.description.abstract | A sudden dam failure is usually simulated by the rapid removal of a gate in laboratory tests and numerical simulations. The gate-opening time is often determined according to the Lauber and Hager instantaneous collapse criterion (referred to as Lauber-Hager criterion) established for a rectangular open channel with a dry bed. However, this criterion is not suitable for non-rectangular channels or initial wet-bed conditions. In this study, the effect of the gate-opening time on the wave evolution is investigated by using the large eddy simulation (LES) model. The instantaneous dam break, namely the dam break without a gate, is simulated for comparison. A gate-opening criterion for generating dam-break flow in non-rectangular wet bed channel is proposed in this study, which can be used as an extension of the Lauber-Hager criterion and provides a more comprehensive and reasonable estimate of the gate opening time. | |
dc.description.sponsorship | National Natural Science Foundation of China (Grant No: 51879179), the Open Fund from the State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University (SKHL1809) and Sichuan Science and Technology Program (No. 2019JDTD0007). | |
dc.language.iso | en | en |
dc.rights | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | |
dc.subject | Gate-opening time | |
dc.subject | Criterion | |
dc.subject | Dam-break wave | |
dc.subject | Non-rectangular channel | |
dc.subject | Wet-bed | |
dc.subject | LES | |
dc.title | Gate-opening criterion for generating dam-break flow in non-rectangular wet bed channels | |
dc.status.refereed | Yes | |
dc.date.application | 2020-11-28 | |
dc.type | Article | |
dc.type.version | Published version | |
dc.identifier.doi | https://doi.org/10.3390/en13236280 | |
dc.rights.license | CC-BY | |
refterms.dateFOA | 2021-04-09T14:23:26Z | |
dc.openaccess.status | openAccess | |
dc.date.accepted | 2020-11-25 |