3D numerical simulation of cross-levee breaching process due to overtopping flow
Апстракт
Dike failures due to overtopping flows cause severe damages. For risk management, it is of great importance to understand the mechanism of dike failure and predict flows and sediment transport in the breaching process accurately. In this study, numerical simulation of cross-levee breaching process is carried out by using a 3D flow model in porous media and density function methods, and a non-equilibrium sediment transport model. A simplified sediment collapse model is also incorporated in the numerical simulation. The developed model is applied to the levee breach in the small scale hydraulic experiment. Comparing with the previous experimental results, it is shown that the numerical model can reproduce the widening process of dike failure reasonably well.
Извор:
River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016, 2016, 1764-1771Издавач:
- CRC Press/Balkema
Scopus: 2-s2.0-85015306811
Колекције
Институција/група
GraFarTY - CONF AU - Onda, S. AU - Hosoda, Takashi AU - Jaćimović, Nenad AU - Kimura, I. PY - 2016 UR - https://grafar.grf.bg.ac.rs/handle/123456789/743 AB - Dike failures due to overtopping flows cause severe damages. For risk management, it is of great importance to understand the mechanism of dike failure and predict flows and sediment transport in the breaching process accurately. In this study, numerical simulation of cross-levee breaching process is carried out by using a 3D flow model in porous media and density function methods, and a non-equilibrium sediment transport model. A simplified sediment collapse model is also incorporated in the numerical simulation. The developed model is applied to the levee breach in the small scale hydraulic experiment. Comparing with the previous experimental results, it is shown that the numerical model can reproduce the widening process of dike failure reasonably well. PB - CRC Press/Balkema C3 - River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016 T1 - 3D numerical simulation of cross-levee breaching process due to overtopping flow EP - 1771 SP - 1764 UR - https://hdl.handle.net/21.15107/rcub_grafar_743 ER -
@conference{ author = "Onda, S. and Hosoda, Takashi and Jaćimović, Nenad and Kimura, I.", year = "2016", abstract = "Dike failures due to overtopping flows cause severe damages. For risk management, it is of great importance to understand the mechanism of dike failure and predict flows and sediment transport in the breaching process accurately. In this study, numerical simulation of cross-levee breaching process is carried out by using a 3D flow model in porous media and density function methods, and a non-equilibrium sediment transport model. A simplified sediment collapse model is also incorporated in the numerical simulation. The developed model is applied to the levee breach in the small scale hydraulic experiment. Comparing with the previous experimental results, it is shown that the numerical model can reproduce the widening process of dike failure reasonably well.", publisher = "CRC Press/Balkema", journal = "River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016", title = "3D numerical simulation of cross-levee breaching process due to overtopping flow", pages = "1771-1764", url = "https://hdl.handle.net/21.15107/rcub_grafar_743" }
Onda, S., Hosoda, T., Jaćimović, N.,& Kimura, I.. (2016). 3D numerical simulation of cross-levee breaching process due to overtopping flow. in River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016 CRC Press/Balkema., 1764-1771. https://hdl.handle.net/21.15107/rcub_grafar_743
Onda S, Hosoda T, Jaćimović N, Kimura I. 3D numerical simulation of cross-levee breaching process due to overtopping flow. in River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. 2016;:1764-1771. https://hdl.handle.net/21.15107/rcub_grafar_743 .
Onda, S., Hosoda, Takashi, Jaćimović, Nenad, Kimura, I., "3D numerical simulation of cross-levee breaching process due to overtopping flow" in River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016 (2016):1764-1771, https://hdl.handle.net/21.15107/rcub_grafar_743 .