Flood Submergence Processes Simulation Based on Virtual Reality

Abstract:

Flood submergence process simulation has important practical significance for flood control and disaster alleviation. An integrated information expression was developed to simulate flooding submergence. The Songhua River and urban area in Harbin, China were used as an example with the terrain described by a triangular mesh to describe the topological relations. A hydrodynamic model was used to calculate the water level of Songhua River, and submerged areas along the river were calculated by grid adjusting method for levees. The flooding process of levee-breach flow in Harbin city was simulated by using two methods: hydrodynamic model calculations method and water depth comparison method. Comparison of the two methods in terms of advantages and disadvantages were made. Combining hydrodynamic modeling method and domain searching method realized smooth simulation of flood routing process in three-dimensional virtual environment. The study presents the integrated information such as the geographical environment, flooded areas, flooding extent, and water depth distribution in the three-dimensional virtual environment, thus, can help improve flood submergence forecasting and decision.

• Periodical: Advanced Materials Research (Volumes 403-408)
• Pages: 4210-4215
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.403-408.4210
• Online since: November 2011
• Authors: Shang Hong Zhang, Yan Liu, Zhong Xi Xia
• Keywords: Flood Submergence, Hydrodynamic, Topology Relation of Triangle Net, Virtual Reality (VR)

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DOI: 10.1016/0021-9991(90)90091-e

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