Numerical Simulation and Visualization of Flood Inundation in the Upper Reaches of Huangpu River

Abstract

An integrated strategy coupling GIS with twodimension hydrodynamic model is explored to simulate the flooding inundation in the upper reaches of Huangpu River. DEM data, hydraulic engineering map and other available geospatial data are used and aid to generate the computational grid, while, some treatments of interior and exterior boundary conditions, and calculations of variable resistance terms are discussed. Then the hydrodynamic model, Delft3D-Flow, is applied to predict the submerged area, as well as the distribution of water depth and velocity. Finally, the simulated result is processed and the dynamic visual simulation of flooding is developed based on component GIS technology, which will provide scientific methods for experts to make flood risk map and loss assessment.

Dynamic visualisation of storm surge flood routing based on three‐dimensional numerical simulation

“…To realise dynamic visualisation of flood routing, different models or algorithms have been used to simulate flood or water inundation, such as the 2D raster‐based diffusion‐wave model (Yu and Lane, , ), dynamic geometric wave model (Shi et al , ), spatiotemporal dynamic model (Li et al , ) and river boundary search algorithm (Ye et al , ). Some scholars have applied the Geographic Information Service platform (Li et al , ; Zheng et al , ; Ye et al , ; Yin et al , ) or FORTRAN and VB platform (Yu et al , ) to display the simulation results. Some studies involved simulating the details of water flow by using the smoothed particle hydrodynamics (SPH) method (Dalrymple and Rogers, ; Yim et al , ).…”

“…A participatory visualisation of flood routing has been shown to be a powerful tool for changing perceptions of flood risk without waiting for an event to occur which will be an important component of coastal flood management (Evans et al, 2014;Wadey et al, 2015). To realise dynamic visualisation of flood routing, different models or algorithms have been used to simulate flood or water inundation, such as the 2D raster-based Geographic Information Service platform (Li et al, 2005;Zheng et al, 2010;Ye et al, 2011;Yin et al, 2011) or FOR-TRAN and VB platform (Yu et al, 2006) to display the simulation results. Some studies involved simulating the details of water flow by using the smoothed particle hydrodynamics (SPH) method (Dalrymple and Rogers, 2006;Yim et al, 2008).…”

Hydraulic Calculation and Visualization of Long Distance Pipeline Based on GIS

“…GIS (Geographic Information System) technology is a computer system that collect, store, manage, analyze, display and apply spatial data [1]. It is a universal technology that can analyze and process large geographical data.…”