| 黄国如,陈志威,曾博威.城市洪涝模型及CPU-GPU异构并行计算技术研究进展[J].水利学报,2023,54(6):654-665 |
| 城市洪涝模型及CPU-GPU异构并行计算技术研究进展 |
| Research progress of urban flood model and CPU-GPU heterogeneous parallel computing technology |
| 投稿时间：2022-11-02 |
| DOI：10.13243/j.cnki.slxb.20220901 |
| 中文关键词: 城市洪涝|产汇流模型|河道/管网模型|地表模型|耦合模型|异构并行计算 |
| 英文关键词: urban flood|runoff yield and concentration model|channel/drainage network model|surface model|coupled model|heterogeneous parallel computing |
| 基金项目:国家自然科学基金项目(52279015) |
|
| 摘要点击次数: 2287 |
| 全文下载次数: 2126 |
| 中文摘要: |
| 在全球气候变暖和城市化背景下，城市洪涝问题日益严峻。为尽可能减少城市洪涝灾害造成的损失，提高城市对突发性强降雨事件的应急处理水平，开展城市洪涝数值模拟技术研究具有十分重要的意义。本文从城市洪涝精细化和高效模拟角度出发，综述了城市洪涝模型、CPU-GPU异构并行计算的研究进展，系统总结了产汇流模型、一维河道/管网模型、二维地表模型、耦合模型、快速城市洪涝模型的构建方法和CPU-GPU异构并行计算的关键技术。针对当前城市洪涝模型研究中的不足之处，需要开展城市洪涝过程全物理机制模拟研究，深入分析全水动力城市洪涝模型的适用性、模拟精度和计算效率;还需基于异构并行计算技术，实现城市洪涝模型一维河道/管网、二维地表淹没的快速模拟，为城市暴雨洪涝精细化与高效模拟奠定基础。 |
| 英文摘要: |
| In the context of global warming and urbanization，urban flood is becoming more and more serious.In order to minimize the losses caused by urban flood disasters and improve the emergency treatment level of sudden heavy rainfall events in cities，it is of great significance to carry out research on urban flood numerical simulation technology.From the perspective of refined and efficient simulation of urban flood，this paper reviews the research progress of urban flood model and CPU-GPU heterogeneous parallel computing，systematically summarizing the construction methods of runoff yield and concentration model，one-dimensional channel/drainage network model，two-dimensional surface model，coupled model，fast urban flood model and the key technologies of CPU-GPU heterogeneous parallel computing.In view of the shortcomings of the current urban flood model research，it is necessary to carry out the full physical mechanism simulation research of urban flood process，and deeply analyze the applicability，simulation accuracy and computational efficiency of the full hydrodynamic urban flood model.It is also necessary to realize the rapid simulation of one-dimensional channel/drainage network and two-dimensional surface inundation of urban flood model based on heterogeneous parallel computing technology，which lays a foundation for the refined and efficient simulation of urban rainstorm and flood. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |