A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China

Han, Hao; Hou, Jingming; Xu, Zongxue; Jing, Haixiao; Gong, Jiahui; Zuo, Depeng; Li, Bingyao; Yang, Shaoxiong; Kang, Yongde; Wang, Run

doi:10.1007/s12205-021-2158-3

Cited by 6 publications

(7 citation statements)

References 42 publications

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“…The classification result is shown in Figure 2c. The Manning coefficients were determined according to relevant literature (Han et al, 2021). The infiltration rate was measured in the study area through the double ring infiltration measurement method.…”

Section: Basic Data Of the Study Areamentioning

confidence: 99%

“…The input data of the model include rainfall, DEM, infiltration, manning coefficient, land‐use data, pipe‐network data. Based on high‐resolution DEM data, this model can simulate complex surface water flow in urban area (Bai et al, 2021; Han et al, 2021; Hou et al, 2020; Hou, Li, et al, 2021).…”

Section: Numerical Experiments Designmentioning

confidence: 99%

“…Because terrain features have a significant impact on surface water flow, it is necessary to input high resolution terrain data to characterize the urban topography as much as possible. In this work, (Han et al, 2021). The infiltration rate was measured in the study area through the double ring infiltration measurement method.…”

Section: Basic Data Of the Study Areamentioning

confidence: 99%

“…Figure 2c. The Manning coefficients were determined according to relevant literature(Han et al, 2021). The infiltration rate was mea-…”

mentioning

confidence: 99%

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The effect of spatial–temporal characteristics of rainfall on urban inundation processes

Chen

Hou

et al. 2022

Hydrological Processes

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The spatial-temporal characteristics of rainfall is one of the important elements affecting urban inundation. In this work, the effect of spatial-temporal characteristics of rainfall on urban inundation processes was investigated. To solve the problem that it is difficult to acquire the spatial-temporal characteristics of rainfall, the weather generator model was used to generate rainfall data in accordance with the climatic conditions of the study area. Then, precise rainfall data with 1 km 2 spatial resolution and 5 min temporal resolution were obtained through the downscaling method.

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Section: Basic Data Of the Study Areamentioning

confidence: 99%

Section: Numerical Experiments Designmentioning

confidence: 99%

Section: Basic Data Of the Study Areamentioning

confidence: 99%

“…Figure 2c. The Manning coefficients were determined according to relevant literature(Han et al, 2021). The infiltration rate was mea-…”

mentioning

confidence: 99%

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The effect of spatial–temporal characteristics of rainfall on urban inundation processes

Chen

Hou

et al. 2022

Hydrological Processes

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“…Today, urban inundation models are widely used for studying urban inundation [ 15 ]. Scholars have developed many urban inundation models, including SSCM (Urban Storm Pipeline Calculation Model) [ 16 ], CSYJM (Urban Storm Runoff Model) [ 17 ], SWMM (Storm Water Management Model) [ 18 ], InfoWorks ICM (InfoWorks Integrated Catchment Management) [ 19 , 20 ], and MIKE series [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Urban Inundation under Different Rainstorm Scenarios in Lin’an City, China

Chen

Hou

et al. 2022

IJERPH

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Under the circumstances of global warming and rapid urbanization, damage caused by urban inundation are becoming increasingly severe, attracting the attention of both researchers and governors. The accurate simulation of urban inundation is essential for the prevention of inundation hazards. In this study, a 1D pipe network and a 2D urban inundation coupling model constructed by InfoWorks ICM was used to simulate the inundation conditions in the typical urbanized area in the north of Lin’an. Two historical rainfall events in 2020 were utilized to verify the modeling results. The spatial–temporal variation and the causes of urban inundation under different designed rainfalls were studied. The results were as follows: (1) The constructed model had a good simulation accuracy, the Nash–Sutcliffe efficiency coefficient was higher than 0.82, R2 was higher than 0.87, and the relative error was ±20%. (2) The simulation results of different designed rainfall scenarios indicated that the maximum inundation depth and inundation extent increased with the increase in the return period, rainfall peak position coefficient, and rainfall duration. According to the analysis results, the urban inundation in Lin’an is mainly affected by topography, drainage network (spatial distribution and pipe diameter), and rainfall patterns. The results are supposed to provide technical support and a decision-making reference for the urban management department of Lin’an to design inundation prevention measures.

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Acceleration of flow modeling using a freeware 2D GPU-shallow water equations code

Mahmood

Haider²,

Gabriel³

et al. 2022

Arab J Geosci

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A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China

Cited by 6 publications

References 42 publications

The effect of spatial–temporal characteristics of rainfall on urban inundation processes

The effect of spatial–temporal characteristics of rainfall on urban inundation processes

Urban Inundation under Different Rainstorm Scenarios in Lin’an City, China

Acceleration of flow modeling using a freeware 2D GPU-shallow water equations code

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