Real-time simulation of large-scale floods

International Conference on Water Resource and Environment 2016

地球科学;生态环境科学

Liu, Q.^1 ; Qin, Y.^1 ; Li, G.D.^1 ; Liu, Z.^2 ; Cheng, D.J.^2 ; Zhao, Y.H.^2

Key Laboratory of the North-West Water Resources and Ecology Environment, Ministry of Education, Xi'An University of Technology, Xi'an

710048, China^1

Tianjin Water Authority, 210 Weidi Road, Hexi District, Tianjin

300074, China^2

关键词: Adaptive methods;    Critical factors;    Flood prevention;    Flood simulation;    Model robustness;    Real time simulations;    Running efficiency;    Shallow water model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/39/1/012050/pdf
DOI  :  10.1088/1755-1315/39/1/012050

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

According to the complex real-time water situation, the real-time simulation of large-scale floods is very important for flood prevention practice. Model robustness and running efficiency are two critical factors in successful real-time flood simulation. This paper proposed a robust, two-dimensional, shallow water model based on the unstructured Godunov- type finite volume method. A robust wet/dry front method is used to enhance the numerical stability. An adaptive method is proposed to improve the running efficiency. The proposed model is used for large-scale flood simulation on real topography. Results compared to those of MIKE21 show the strong performance of the proposed model.