洪水演进高速模拟系统设计与实现

针对洪水灾害系统动态变化特征,以珠江流域西江浔江段防洪保护区为例,提出了基于CPU-GPU异构平台协同计算的一维-二维耦合水动力并行计算模型;在此基础上,根据防汛工程实际需求设计了洪水演进系统框架及功能架构,并采用C/S体系结构与Web服务交互方式,搭建了防洪保护区洪水演进高速模拟系统,实现了不同水文和溃口条件下洪水淹没在线快速分析及动态展示。实际应用结果表明,该系统计算效率高,展示效果好,运行稳定可靠,交互性强,可为流域防洪减灾决策提供技术支撑,具有较高的实际应用价值。

Design and Implementation of High Speed Simulation System for Flood Routing

According to the significant time varying characteristic of flood disaster system, the flood protected area of Xunjiang River in the Pearl River Basin was selected as study area, and a 1D 2D coupled hydrodynamic model based on CPU GPU heterogeneous platform with cooperative parallel computing was proposed. To dynamically and fast simulate the flood routing process under arbitrary conditions of hydrology and breach parameters, a high speed simulation system for flood routing was developed by using the C/S architecture and Web service interaction mode, and the system''s software architecture and function structure were designed to satisfy the demand of actual flood control. The engineering application indicates that the developed system is efficient, stable, and reliable with good display effect, and strong interaction. The system can provide technical support to the fast decision for flood disaster prevention and reduction, thus it has a bright application prospect.