水利数字孪生平台三维模拟仿真技术研究与应用

Research and application of key technologies for 3D simulation of water conservancy digital twin platform

三维模拟仿真技术是水利数字孪生平台建设的重要基础,为水利要素及水利治理管理过程的数字化映射、智能化模拟提供关键支撑。为进一步驱动各类水利模型的协同高效运算,推进对流域和水利工程管理活动的智慧化模拟,需对水利三维模拟仿真的流程框架和关键技术进行研究和应用。其中,基于IFC、CityGML等标准,将多种主流BIM平台数据模型与水利GIS场景数据进行深度对接融合,并实现融合数据与不同尺度数字化场景的关联映射,构建形成GIS+BIM多源融合、多维度、多尺度的水利数字孪生场景。基于基础空间分析功能,进一步接入水利专业模型,实现各种定制水利业务的三维模拟仿真,并结合云渲染技术提升三维可视化的保真度和质量。研究成果初步形成了水利数字孪生三维模拟仿真全链条解决方案,并通过多个数字孪生项目实例展示了其应用效果。结果表明,所提出的水利三维模拟仿真技术能够为智慧水利建设提供有力支撑与技术驱动。

3D simulation technology is an important basis for the construction of water conservancy digital twins and can provide a key support for digital mapping and intelligent simulation of water conservancy elements and management processes.In order to further drive the collaborative and efficient operation of various water conservancy models and promote the intelligent simulation of basin management activities,we study and apply the process framework and key technologies of water conservancy 3D simulation.Among them,on the basis of IFC,CityGML and other standards,multiple mainstream BIM platform data models and GIS scene data are deeply interconnected and fused,and the correlation mapping between the real world and digital scenes at different scales is realized,constructing a multi-source integration,multi-dimensional and multi-scale water conservancy digital twins scene.In view of the basic spatial analysis function and the water conservancy professional model,the three-dimensional simulation of various customized water conservancy applications is realized,and the effect and quality of three-dimensional visualization are improved by combining cloud rendering technology.The research has initially formed a full-chain solution for the water conservancy digital twin simulation,and several practical digital twin projects have also demonstrated the effectiveness of this research.The results show that the water conservancy digital twin simulation technology proposed in this paper can provide effective support and technology drive for intelligent water conservancy construction.