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Three-dimensional dynamic whole-process simulation method for storm surge and flood routing in complex flooding areas

A three-dimensional dynamic and simulation method technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as the inability to truly reflect the detailed changes of the flow field, and the terrain modeling dynamic simulation of complex submerged areas is not involved.

Inactive Publication Date: 2012-09-12
TIANJIN UNIV
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Problems solved by technology

[0005] To sum up, most of the research on numerical simulation of flood evolution at home and abroad focuses on one-dimensional or two-dimensional numerical simulation of water flow, which cannot truly reflect the detailed changes of the flow field, and none of them involve the modeling of terrain in complex submerged area

Method used

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  • Three-dimensional dynamic whole-process simulation method for storm surge and flood routing in complex flooding areas
  • Three-dimensional dynamic whole-process simulation method for storm surge and flood routing in complex flooding areas
  • Three-dimensional dynamic whole-process simulation method for storm surge and flood routing in complex flooding areas

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Embodiment Construction

[0075] Based on the three-dimensional κ-ε turbulence equation of the coupled VOF method, the present invention conducts a refined three-dimensional numerical simulation of the evolution process of storm surge floods in complex submerged areas, using the established three-dimensional digital model of the research area as a carrier, combined with the drawing of submerged water depth maps, Liquid phase flow dynamic simulation, flood evolution dynamics solution, virtual-real coupling modeling and other technologies realize the 3D full-process dynamic simulation of storm surge flood evolution in complex submerged areas, and analyze the time and water depth of storm surge flood evolution in complex submerged areas to different regions and flow rate provide fast, accurate and intuitive forecasts.

[0076] The method specifically includes:

[0077] (1) Three-dimensional mathematical model of storm surge flood evolution in complex submerged areas;

[0078](2) Drawing of storm surge fl...

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Abstract

The invention belongs to a field of the visual simulation of a flood routing. Aiming at realizing the three-dimensional dynamic whole-process simulation of the storm surge and the flood routings, the safety management of seawalls, a quick scientific assessment of the storm surge disaster, and the scientific formulation and the implementation of rescue and relief work, the technical scheme provided is the three-dimensional dynamic whole-process simulation of the storm surge and the flood routings, comprising the following steps: (1) establishing three-dimensional mathematical models of the storm surge and the flood routings in complex flooding areas; (2) drawing bathymetric charts of the storm surge and the flood submerging in complex flooding areas (3) dynamically simulating liquid phase flows of the storm surge and the flood routings in complex flooding areas; (4) carrying out the dynamics calculation of the storm surge and the flood routings in complex areas; (5) establishing virtual-real coupling models of the storm surge and the flood routings in complex areas; (6) carrying out the post processing and the visual output of the three-dimensional dynamic whole-process simulation. The method is mainly applied in the three-dimensional dynamic whole-process simulation of the storm surge and the flood.

Description

technical field [0001] The invention belongs to the field of visual simulation of flood evolution in complex submerged areas, and relates to three-dimensional numerical simulation of storm surge flood evolution in complex submerged areas and a numerical simulation-based three-dimensional dynamic whole-process simulation method for flood evolution in complex submerged areas. Specifically, it involves a three-dimensional dynamic whole-process simulation method for storm surge flood evolution in complex submerged areas based on numerical simulation. Background technique [0002] China's marine disaster losses account for about 10% of all natural disasters, and storm surge disasters rank first in marine disasters. With the wide application of CFD (Computational Fluid Dynamics, Computational Fluid Dynamics) technology, the numerical simulation of storm surge flood evolution has become one of the important means of storm surge disaster risk assessment. The 3D dynamic whole proces...

Claims

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Application Information

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IPC IPC(8): G06T19/00G06T17/00
Inventor 佟大威王晓玲刘东海
Owner TIANJIN UNIV
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