数字孪生流域模型研发若干问题思考  

Thinking on some problems in the development of professional models for digital twin basins

作　　者：胡春宏[1,2] 郭庆超 张磊[1,2,3] 秦伟 关见朝[1,3] Hu Chunhong;Guo Qingchao;Zhang Lei;Qin Wei;Guan Jianchao

机构地区：[1]中国水利水电科学研究院,北京100048 [2]流域水循环模拟与调控国家重点实验室,北京100048 [3]水利部泥沙科学与北方河流治理重点实验室,北京100048

出　　处：《中国水利》2022年第20期7-10,共4页China Water Resources

基　　金：国家自然科学基金项目(U2040217)。

摘　　要：基于数字孪生具有物理实体、虚拟实体及二者连接的三维架构特点,分析了数字孪生流域中独立事件保真度在不同层级的衰减过程,提出了在目前技术水平下数字孪生流域的保真度约为0.80。探讨了提高数字孪生流域整体保真度的两条路径。以泥沙数学模型和土壤侵蚀模型为例,提出了模型研发方向。进而沿着提高模型精度和通用性以及软件标准化和可视化技术路线,具体阐述了如何开展水利专业模型研发,以提高整体保真度,支撑数字孪生流域建设。Based on the three-layer structure characteristics of digital twin with the physical entity,virtual entity and their connection,this paper analyzes the attenuation process of the fidelity of independent event in the digital twin basin at different layers,and proposes that the fidelity of the digital twin basin is about 0.80 under the current technical level.By taking the sediment mathematical model and soil erosion model as examples,the research direction of models is put forward.Then,along the technical route of improving the accuracy and universality of the model,the paper exhibits how to carry out the development of professional models to improve the overall fidelity and support the construction of the dig⁃ital twin basin.

关 键 词：数字孪生流域 智慧水利 泥沙数学模型 土壤侵蚀模型 保真度 

分 类 号：TV142[水利工程—水力学及河流动力学] TP311[自动化与计算机技术—计算机软件与理论]