New prospects for computational hydraulics by leveraging high-performance heterogeneous computing techniques

作     者：Qiuhua LIANG Luke SMITH Xilin XIA 

作者机构：Hebei University of Engineering Handan 056038 China School of Civil Engineering and Geosciences Newcastle University Newcastle upon Tyne UK 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2016年第28卷第6期

页      面：977-985页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Project supported by the UK NERC SINATRA Project(Grant No.NE/K008781/1) 

主　　题：computational hydraulics high-performance computing flood modeling shallow water equations shock-capttLring hydrodynamic model 

摘      要：In the last two decades, computational hydraulics has undergone a rapid development following the advancement of data acquisition and computing technologies. Using a finite-volume Godunov-type hydrodynamic model, this work demonstrates the promise of modern high-performance computing technology to achieve real-time flood modeling at a regional scale. The software is implemented for high-performance heterogeneous computing using the OpenCL programming framework, and developed to support simulations across multiple GPUs using a domain decomposition technique and across multiple systems through an efficient implementation of the Message Passing Interface （MPI） standard. The software is applied for a convective storm induced flood event in Newcastle upon Tyne, demonstrating high computational performance across a GPU cluster, and good agreement against crowd- sourced observations. Issues relating to data availability, complex urban topography and differences in drainage capacity affect results for a small number of areas.