Simulation on Improved Method of GIS Smoothed Particle Hydrodynamics
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    Abstract:

    This study proposes a tool for analyzing the tsunami outbreaks in coastal cities based on a 3D particle method of Smoothed Particle Hydrodynamics (SPH). Firstly, we obtain the 3D location information (SHP) and Digital Elevation Model (DEM) through the Geographic Information System (GIS), thus display the topography, altitude, and the outside appearance of the buildings. Then, the STL data defined by the surface profile are converted to particle data. Finally, the incompressible condition in the SPH method is alleviated, and the boundary problem is solved by virtual marking. The 3D simulations show that the tsunami particles do not penetrate into the buildings, and there is no gap between the buildings and the ground, which verifies the good results of the proposed method.

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王建华,冉煜琨.基于GIS光滑粒子流体动力学改进方法仿真.计算机系统应用,2021,30(4):181-186

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History
  • Received:July 31,2020
  • Revised:August 25,2020
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  • Online: March 31,2021
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