Three-dimensional flood routing of a dam break based on a high-precision digital model of a dense urban area

Wang, Xiaoling; Chen, Wenlong; Zhou, Zhengyin; Zhu, Yushan; Wang, Cheng; Liu, Zhen

doi:10.1007/s11069-016-2734-x

Cited by 11 publications

(6 citation statements)

References 32 publications

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“…The results show that the methodology is useful for estimating maximum flow depth, maximum flow velocity, height of flood waves, time for flood to reach residential zones, and total area affected by flood. A similar dam-break flood routing using high-precision DEM and capturing the interactions between the flood wave and the wall surfaces of buildings in a dense urban area was proposed by Wang, Chen et al (2017). An important finding from this study is that dam-break flood in a dense urban area exhibits complex threedimensional characteristics, including turbulence, collision, reflection and vortices.…”

Section: Dam-break Flood Routingmentioning

confidence: 67%

A review of structural approach to flood management in coastal megacities of developing nations: current research and future directions

Ogie

Adam

Perez

2019

Journal of Environmental Planning and Management

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Flooding is a major environmental problem around the world. The problem is expected to worsen with climate change, particularly in coastal megacities of developing nations (CMDN), where vulnerability to extreme weather events is high and flood management capacity is weak. This systematic literature review focuses on structural approaches to flood management in CMDN as most of these cities rely heavily on them. The review covers the last two decades, being the period 1998-2018. Results reveal key areas of research, which are discussed within two broad categories of focus (1) establishment of new flood control projects and (2) management of existing flood control infrastructure. Several directions are suggested to guide future research efforts.

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Section: Dam-break Flood Routingmentioning

confidence: 67%

A review of structural approach to flood management in coastal megacities of developing nations: current research and future directions

Ogie

Adam

Perez

2019

Journal of Environmental Planning and Management

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“…In 3D models based on the RANS equations, the effect of turbulence is introduced through a closure turbulence model. The classic k-ε model is the most adopted in the references reviewed (entries [37,82,85,95] in Table 2). However, no systematic sensitivity analyses on the turbulence model type were performed for real-world dam-break case studies.…”

Section: Improvements In Simulation Accuracymentioning

confidence: 99%

“…Recently, topographic data accuracy and spatial resolution have been significantly improved thanks to highly accurate terrain surveying techniques, such as scanning airborne laser altimetry (LIDAR), which can reach a horizontal resolution even below 1 m and a vertical accuracy of 10 −1 m [19], and unmanned aerial vehicle (UAV) photogrammetry, which is very effective in terms of timeliness, repeatability, and high resolution [91]. Hence, highly accurate and high-resolution topographic digital models are widespread nowadays, even in urban areas [85], and allow for very accurate dam-break flow modelling.…”

Section: Improvements In Simulation Accuracymentioning

confidence: 99%

Three-Dimensional Numerical Modelling of Real-Field Dam-Break Flows: Review and Recent Advances

Maranzoni,

Tomirotti

2023

Water

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Numerical modelling is a valuable and effective tool for predicting the dynamics of the inundation caused by the failure of a dam or dyke, thereby assisting in mapping the areas potentially subject to flooding and evaluating the associated flood hazard. This paper systematically reviews literature studies adopting three-dimensional hydrodynamic models for the simulation of large-scale dam-break flooding on irregular real-world topography. Governing equations and numerical methods are analysed, as well as recent advances in numerical techniques, modelling accuracy, and computational efficiency. The dam-break case studies used for model validation are highlighted. The advantages and limitations of the three-dimensional dam-break models are compared with those of the commonly used two-dimensional depth-averaged ones. This review mainly aims at informing researchers and modellers interested in numerical modelling of dam-break flow over real-world topography on recent advances and developments in three-dimensional hydrodynamic models so that they can better direct their future research. Practitioners can find in this review an overview of available three-dimensional codes (research, commercial, freeware, and open-source) and indications for choosing the most suitable numerical method for the application of interest.

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“…Some of the inundation events have been really dramatic: the catastrophic inundation of subway stations in Seoul following a heavy rainfall, in 1998, South Korea; the catastrophic flooding of Taipei metro system following the typhoon Nari, in 2001; the serious inundation of Yinzuo underground mall in Jinan City following an exceptional rainfall and dike break, in 2007, China; the flooding in New York and its subway system that was caused by the hurricane Sandy, in 2012, USA; and, at present, the flooding of subway stations in Guangzhou, in May 2016, China and the serious inundation of subway stations and underground parking lots in Wuhan City in July 2016, China. As a result, more and more scientists and engineers around the world have been working on studying urban waterlogging and flooding [12][13][14][15][16], particularly underground flood problems [17].…”

Section: Introductionmentioning

confidence: 99%

Application of Bayesian Approach to Dynamic Assessment of Flood in Urban Underground Spaces

Fang

et al. 2018

Water

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Urban underground facilities tend to be vulnerable to flood that is generated by the breaking of a dam or a levee, or a flash flood after an exceptional rainfall. Rapid and dynamic assessment of underground flood evolution process is of great significance for safety evacuation and disaster reduction. Taking advantage of the Delphi method to determine the Bayesian conditional probabilities collected by expert knowledge, this paper proposes an integrated Bayesian Network (BN) framework for rapidly and dynamically assessing the flood evolution process and consequences in underground spaces. The proposed BN framework, including seventeen nodes, can represent the flood disaster drivers, flood disaster bearers, flood mitigation actions, and on-site feedback information. Given evidences to specific nodes, the risk distribution of typical flood scenarios can be quantitatively estimated. The results indicate that the proposed framework can be useful for dynamically evaluating underground flood evolution process and identifying the critical influencing factors. This BN-based framework is helpful for “Scenario-Response”-based predictive analyses to support decision that is related to flood disaster emergency response.

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Three-dimensional flood routing of a dam break based on a high-precision digital model of a dense urban area

Cited by 11 publications

References 32 publications

A review of structural approach to flood management in coastal megacities of developing nations: current research and future directions

A review of structural approach to flood management in coastal megacities of developing nations: current research and future directions

Three-Dimensional Numerical Modelling of Real-Field Dam-Break Flows: Review and Recent Advances

Application of Bayesian Approach to Dynamic Assessment of Flood in Urban Underground Spaces

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