Simulation Of Aqueduct Disaster Based On Virtual Reality

As an important facility to regulate the uneven distribution of water resources,water conveyance projects are an important guarantee for regional economic development.The catastrophe simulation of aqueduct and other water conveyance facilities through virtual reality technology can provide decision support for engineering emergency rescue.Based on the key technology methods of virtual reality,such as graphic modeling and numerical simulation,this paper studies and realizes the simulation method of aqueduct catastrophe process from three aspects:aqueduct modeling,water flow simulation and rigid body crushing simulation.The main contents are as follows:1.Research on the realization of aqueduct 3D solid modeling and water flow simulation method.According to the solid modeling technology,the aqueduct architectural design drawings are used as the parameter input source,and the 3D modeling tool is used as auxiliary.Through the various modeling calculations such as sweeping and stretching,the aqueduct 3D solid model is constructed,and then the map is constructed and Material settings for graphical modeling of aqueduct scenes.On this basis,RealFlow is used as a platform to study and implement water flow simulation based on smooth particle dynamics.2.Research and implement the rigid body crushing simulation algorithm based on Voronoi diagram.According to the requirements of different rigid body crushing scenes,try different random generation methods of Voronoi map seed points to realize various simulation effects such as explosion and collapse,which lays a good method foundation for aqueduct disaster simulation in 3D scene.3.Research and implement an aqueduct catastrophic approach based on pre-crushing combined with the Unity3 D engine.According to the idea of pre-crushing,the rigid body model is pre-crushed based on the Voronoi diagram segmentation method to improve the simulation efficiency of the rigid body crushing.Based on the powerful physical functions of the Unity3 D engine,the AABB bounding box collision detection algorithm is used and the rigid body dynamics simulation iscompleted for the collision process.4.The simulation method of this paper is verified under the Unity3 D platform,and the virtual simulation of the aqueduct catastrophe process is realized.The experimental results show that the proposed method is feasible and has a high sense of reality.