基于虚拟现实技术的城市洪水演进三维可视化模拟研究

Visualization of Three-dimensional Simulation of City Flood Routing Based on Virtual Reality Technology

以洪水水文数学模型为核心,构建了城市洪水演进和淹没三维模拟系统,并对系统构建过程中的关键技术进行了深入研究.研究表明,将三维可视化技术与水力学模型相结合,极大地提高了模型计算结果的处理速度,对于城市防洪决策及水利工程意义重大.并以安徽省马鞍山市为应用实例,实现了城市三维地形仿真场景模拟及洪水演进分析和三维模拟.

A 3-dimensional simulation system of city flood routing is constructed based on flood hydro-mathematical model and further studies were taken on the key techniques in this simulation system. It is proved that the operating speed of modeling was improved greatly when hydraulic model was introduced into the 3D visualization technique. As an example, the 3D terrain city scene and its flood routing simulation were constructed for Ma＇anshan in Anhui province. This research has very important value to hydraulic project and city flood protection.