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

doi:10.1007/s12205-021-2158-3

IEECAS OpenIR > 生态环境研究室

	A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China
	Han, Hao 1,2,3; Hou, Jingming 2; Xu, Zongxue 1; Jing, Haixiao 1,2; Gong, Jiahui 2; Zuo, Depeng 1; Li, Bingyao 2; Yang, Shaoxiong 2; Kang, Yongde 2; Wang, Run 2
通讯作者	Hou, Jingming(jingming.hou@xaut.edu.cn)
	2021-12-10
发表期刊	KSCE JOURNAL OF CIVIL ENGINEERING
ISSN	1226-7988
页码	11
摘要	Frequent urban rainstorm inundations can cause serious damages to human life and social economy. Reliable simulation of urban rainstorm inundation is an effective approach for performing flood risk analysis to reduce losses. In this work, a full 2D high-performance hydrodynamic model for urban rainstorm inundation simulation based on Graphic Processing Unit (GPU) was developed. The idealized V-shape catchment and sponge city district of Fengxi New City were selected as the study areas to assess performance of the model. The model was validated against analytical benchmark results of the idealized V-catchment test which show good agreement between the modelled flow and analytical solutions. The model was then applied to simulate actual urban rainstorm inundation process under measured rainfall. The results indicated that the model can be applied to high-resolution urban region simulations. Specifically, the validation results indicated that the proposed model had a good performance, with an accepted error of less than 15%. When applied to compute the Fengxi New city under design rainstorms with different annual return periods of 1, 5, 10, 20, 50, and 100 years, it was found that the model effectively evaluated the temporal and spatial variation process of urban inundation, and quantitatively investigated flood risks according to the water depth change. The model has been substantially accelerated on GPU to quickly predict urban inundation. The accuracy and rapid simulation speed of the model were verified based on the actual study area. Therefore, the proposed model can help to predict the dynamic processes of urban flood inundation and thus reduce flood inundation disasters. This is essential for future optimal sponge urban construction planning in China.
关键词	High-performance 2D hydrodynamic model Urban rainstorm inundation GPU
DOI	10.1007/s12205-021-2158-3
关键词[WOS]	SHALLOW FLOW MODEL ; OVERLAND-FLOW ; STORM RUNOFF ; MANAGEMENT ; SURFACES ; DESIGN ; FLOODS
收录类别	SCI ; SCI
语种	英语
资助项目	Open Research Fund of Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing Normal University[HYD2018OF02] ; National Natural Science Foundation of China[52079106] ; National Natural Science Foundation of China[52009104] ; Key Research and Development Program of Shaanxi[2021SF-484] ; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology
WOS研究方向	Engineering
项目资助者	Open Research Fund of Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing Normal University ; National Natural Science Foundation of China ; Key Research and Development Program of Shaanxi ; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology
WOS类目	Engineering, Civil
WOS记录号	WOS:000728441500001
出版者	KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17306
专题	生态环境研究室
通讯作者	Hou, Jingming
作者单位	1.Beijing Normal Univ, Coll Water Sci, Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing 100875, Peoples R China 2.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Han, Hao,Hou, Jingming,Xu, Zongxue,et al. A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2021:11.
APA	Han, Hao.,Hou, Jingming.,Xu, Zongxue.,Jing, Haixiao.,Gong, Jiahui.,...&Wang, Run.(2021).A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China.KSCE JOURNAL OF CIVIL ENGINEERING,11.
MLA	Han, Hao,et al."A GPU-Accelerated Hydrodynamic Model for Urban Rainstorm Inundation Simulation: A Case Study in China".KSCE JOURNAL OF CIVIL ENGINEERING (2021):11.