Dynamic visualisation of storm surge flood routing based on three‐dimensional numerical simulation

Liu, Xiaojun; Zhong, Denghua; Tong, Dawei; Zhou, Zhengyin; Ao, Xuefei; Li, Wenqian

doi:10.1111/jfr3.12252

Cited by 15 publications

(10 citation statements)

References 45 publications

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“…By using digital hydrodynamic models to calculate the water depth and flow velocity, flood evolution and inundated areas could be simulated and displayed in a 3D virtual environment, thus enhancing decision-makers', the public's, and other stakeholders' awareness of floods. It will also promote scientific management of flood disasters [6][7][8][9]. Although the effect of visualization (such as rainfall and rollback waves) in these studies is reasonably well presented [8], most of them use simulation software or animation technology to show the effects of floods and inundated areas at different times [9].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, terrain topology is established by using contours of topographic maps. This method takes longer to process, and its precision depends on the scale and production time of the map [7,8]. Along with oblique photogrammetry, the seamless integration of spatio-temporal GIS and hydrodynamic models provide a way to solve the problem.…”

Section: Introductionmentioning

confidence: 99%

“…Hydrodynamic models are very complicated and involve large amounts of data [6][7][8][9]. The application value of a hydrodynamic model is affected by the following factors: (a) The availability, timeliness, and resolution of basic data pertaining to the river channel and its surroundings; (b) the effect of the visualization of the computation results; and (c) the extent to which the hydrodynamic models and the business system are integrated.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic 3D Simulation of Flood Risk Based on the Integration of Spatio-Temporal GIS and Hydrodynamic Models

Peng

et al. 2019

IJGI

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Dynamic visual simulation of flood risk is crucial for scientific and intelligent emergency management of flood disasters, in which data quality, availability, visualization, and interoperability are important. Here, a seamless integration of a spatio-temporal Geographic Information System (GIS) with one-dimensional (1D) and two-dimensional (2D) hydrodynamic models is achieved for data flow, calculation processes, operation flow, and system functions. Oblique photography-based three-dimensional (3D) modeling technology is used to quickly build a 3D model of the study area (including the hydraulic engineering facilities). A multisource spatio-temporal data platform for dynamically simulating flood risk was built based on the digital earth platform. Using the spatio-temporal computation framework, a dynamic visual simulation and decision support system for flood risk management was developed for the Xiashan Reservoir. The integration method proposed here was verified using flood simulation calculations, dynamic visual simulations, and downstream river channel and dam-break flood simulations. The results show that the proposed methods greatly improve the efficiency of flood risk simulation and decision support. The methods and system put forward in this study can be applied to flood risk simulations and practical management.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamic 3D Simulation of Flood Risk Based on the Integration of Spatio-Temporal GIS and Hydrodynamic Models

Peng

et al. 2019

IJGI

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“…Due to this power of visualization, many works proceed with various ways, simulation methods, and dynamic parameters to display the properties, which would be difficult to see otherwise. 2D and 3D models have been used for storm surge flood routing visualization [13], risk estimation [14], flood modeling and analysis [12,15,16], rainfall forecasting [17], landslide simulation [18] and to visualize many other scenarios. Recent works show a move from static visualization to dynamic visualization [19][20][21], to provide more interactive and accessible simulation tools to incorporate virtual environments and dynamic simulation parameters.…”

Section: Introductionmentioning

confidence: 99%

Visualization of Flooding Using Adaptive Spatial Resolution

Hadimlioglu

King

2019

IJGI

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Flood simulations are vital to gain insight into possible dangers and damages for effective emergency planning. With flexible and natural ways of visualizing water flow, more precise evaluation of the study area is achieved. In this study, we describe a method for flood visualization using both regular and adaptive grids for position-based fluids method to visualize the depth of water in the study area. The mapping engine utilizes adaptive cell sizes to represent the study area and utilizes Jenks natural breaks method to classify the data. Predefined single-hue and multi-hue color sets are used to generate a heat map of the study area. It is shown that the dynamic representation benefits the mapping engine through enhanced precision when the study area has non-disperse clusters. Moreover, it is shown that, through decreasing precision, and utilizing an adaptive grid approach, the simulation runs more efficiently when particle interaction is computationally expensive.

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“…It has advantages of low cost and fast speed but produces static results at a certain moment [8][9][10][11]. Thus, constantly measuring the changing parameters, such as grouting pressure and dynamic water pressure, is impossible in the entire grouting process.…”

Section: Introductionmentioning

confidence: 99%

Grouting Model Experiment of Karst Aquifer under Dynamic Water Pressure and Confining Pressure

Zhou¹,

Dawei²,

Halder³

2018

JESTR

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Grouting plays an important role in the construction of projects. The influence of dynamic water pressure and confining pressure on grouting has not been considered by traditional grouting theory. This study used a "geological engineering multifunctional experimental system" to explore the influence mechanism of dynamic water pressure and confining pressure on the grouting effect. Four groups of indoor grouting model experiments were adopted and compared. The influence of dynamic water pressure and confining pressure on the grouting effect was analyzed under different conditions. Experimental results demonstrate that the diffusion of the slurry is divided into pressure diffusion and migration diffusion. The dynamic water pressure causes the grouting slurry to be diluted, and the pressure in the cracks of the rock mass structure increases. As a result, serious loss of slurry occurs, and the slurry obviously shows migration diffusion. The confining pressure leads to closing of structural cracks, and the grouting effect of closed cracks mainly affect the pressure diffusion of the slurry. A coupling effect exists between the dynamic water pressure and the grouting pressure. The final dynamic water pressure increases by 25% compared with the initial value under dynamic water pressure only. By contrast, the final dynamic water pressure increases by 31% compared with the initial value under the combined effect of dynamic water pressure and confining pressure. The grouting effect can be improved by increasing the grouting pressure, decreasing the dynamic water pressure, and extending the grouting time.

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Dynamic visualisation of storm surge flood routing based on three‐dimensional numerical simulation

Abstract: techniques, texture mapping technique and smoothed particle hydrodynamics (SPH) method. The case study demonstrates that 3D visualization could be an effective tool for presenting the dynamic changes of hydrological information visually and realistically.

Cited by 15 publications

References 45 publications

Dynamic 3D Simulation of Flood Risk Based on the Integration of Spatio-Temporal GIS and Hydrodynamic Models

Dynamic 3D Simulation of Flood Risk Based on the Integration of Spatio-Temporal GIS and Hydrodynamic Models

Visualization of Flooding Using Adaptive Spatial Resolution

Grouting Model Experiment of Karst Aquifer under Dynamic Water Pressure and Confining Pressure

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