Two-dimensional modeling of flood wave propagation in residential areas after a dam break with application of diffusive and dynamic wave approaches

Marangoz, Hasan Oğulcan; Anilan, Tuğçe

doi:10.1007/s11069-021-04953-w

Cited by 18 publications

(2 citation statements)

References 22 publications

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“…On the other hand, spatially distributed Manning's coefficient was assigned to each cell in accordance with a simple land cover classification (Figure 8) which is most suited for urban dam breach flood modeling (Gallegos et al, 2009; Marangoz & Anilan, 2022; Psomiadis et al, 2021; Sattar et al, 2019). Gallegos et al (2009) have assigned Manning n values of 0.014, 0.016, 0.013, 0.30, and 0.050 m −1/3 s to roads, channels, reservoirs, developed parcels with buildings, and vegetated open space, respectively based on manual land cover classifications.…”

Section: Surface Roughnessmentioning

confidence: 99%

Review on model development techniques for dam break flood wave propagation

Peramuna,

Neluwala,

Wijesundara

et al. 2023

WIREs Water

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Catastrophic failure of dam structures has often led to severe consequences. The colossal wave receding at a higher velocity from the sudden failure of the dams may obliterate the downstream areas causing loss of lives and property damage. Thus, proper mitigation measures and contingency plans must be formulated beforehand to minimize the impact of such disasters. Consequently, there has been a strong tendency to study dam breach flood modeling using different approaches for both hypothetical dam breach scenarios and real incidents. The technology used for dam breach studies is advancing and a comprehensive review of the existing methodologies would help the modelers in their model development. This paper reviews the state‐of‐the‐art methodologies utilized in studies to propagate the dam break flood wave. Furthermore this guides the selection of methods best suited considering the project‐specific requirements and the complexity of project to simulate the risk to the vulnerable areas generated from the dam break flood flow. Different terrain datasets, mesh generation techniques and calibration techniques have been adapted and adhered to improve computational accuracy, stability and efficiency in modeling dam break floods. The use of high‐resolution global and site‐specific datasets, subgrid models, the choice of roughness coefficients and high‐resolution time steps have to be investigated thoroughly in these models. The paper reviews the existing methodologies with the strengths and limitations facilitating the future dam breach modelers to select the suitable approach in dam break flood wave modeling.This article is categorized under: Engineering Water > Sustainable Engineering of Water Science of Water > Water Extremes Water and Life > Conservation, Management, and Awareness

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Section: Surface Roughnessmentioning

confidence: 99%

Review on model development techniques for dam break flood wave propagation

Peramuna,

Neluwala,

Wijesundara

et al. 2023

WIREs Water

View full text Add to dashboard Cite

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“…Dam-break floods are serious disaster, and the damage they cause is much greater than that caused by a general floods (Marangoz and Anilan, 2021). Flood dam is a dam to store floodwaters temporarily or to supply a surge of water.…”

Section: Introductionmentioning

confidence: 99%

Simulation of one-dimensional dam-break flood routing based on HEC-RAS

Shen

Lei

et al. 2023

Front. Earth Sci.

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Dam-break is a serious disaster resulting in severe damage to downstream communities. Therefore, analyzing the affected range and the evolution process of dam-break floods in advance is valuable. However, the difficulties and challenges lie in the complexity of the breaking process of earth-rock dams, the uncertainty in the evolution of dam-break floods, and the geographical variability. Given this, the objective of this study is to analyze the characteristics of the dam-break flood evolution. The study chooses Chengbi River Reservoir as the research object, HEC-RAS as the simulation software, unsteady flow differential equations and one-dimensional Saint-Venant equations as the control equations, and it uses four-point implicit finite difference method for discrete solution. In this paper, the dam-break flood evolution is simulated under three boundary conditions (full breach, 1/2 breach, 1/3 breach), and the main results are as follows. From the dam site section to the Tianzhou hy-drological station section, the peak discharge decay rates of the three schemes are 78%, 77%, and 67%, respectively. The water level decay rates of the three schemes are 47%, 36%, and 30%, respectively. A 1 m increase in the bursting water level elevation increases the peak flow by ap-proximately 7%, and the highest water level in front of the dam by 1 m, and delays the peak time by 1.5 h on average. In addition, the preliminary inundation extent for the Baise City is obtained. The analysis results can provide a fundamental basis for flood control as well as a reference for flood disaster management.

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An adaptive artificial viscosity for the displacement shallow water wave equation

Zhao

et al. 2022

Appl. Math. Mech.-Engl. Ed.

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Two-dimensional modeling of flood wave propagation in residential areas after a dam break with application of diffusive and dynamic wave approaches

Cited by 18 publications

References 22 publications

Review on model development techniques for dam break flood wave propagation

Review on model development techniques for dam break flood wave propagation

Simulation of one-dimensional dam-break flood routing based on HEC-RAS

An adaptive artificial viscosity for the displacement shallow water wave equation

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