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Grid generation method and device in water environment simulation, storage medium and terminal

A grid generation and water environment technology, applied in the field of water environment simulation, can solve the problems of insufficient grid adaptability and precision adjustment flexibility, and achieve the effect of balancing computing efficiency, achieving computing accuracy, and saving computing resources and time.

Active Publication Date: 2020-07-10
SHANGHAI INVESTIGATION DESIGN & RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a grid generation method, device, storage medium and terminal in water environment simulation, which is used to solve the problem of grid adaptation in water environment simulation analysis in the prior art. Insufficient flexibility in sex and precision adjustment, and the balance between computational efficiency, computational cost, and computational accuracy in mesh generation

Method used

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  • Grid generation method and device in water environment simulation, storage medium and terminal
  • Grid generation method and device in water environment simulation, storage medium and terminal
  • Grid generation method and device in water environment simulation, storage medium and terminal

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Embodiment 1

[0029] figure 1 Represents a schematic flow chart of a grid generation method in water environment simulation according to an embodiment of the present invention, and the specific steps include:

[0030] Step S11: Obtain boundary information, terrain distribution information, and wet and dry information of the water environment. The water environment includes large and complex lakes, reservoirs, large rivers, rivers, estuaries, bays, and the like. The boundary information, topographical distribution information and wet and dry information can be obtained through Google Earth, geographic information system GIS or field surveying and mapping.

[0031] The boundary information refers to the information of the boundary line of the research area, including information such as the starting point of the boundary line, the end point of the boundary line, the length of the boundary line, and the path of the boundary line. The boundary line is an imaginary boundary line used to demarc...

Embodiment 2

[0049] Figure 6 It is a schematic structural diagram of a grid generation device in water environment simulation according to an embodiment of the present invention, including: an information acquisition module 61, which acquires boundary information, topographic distribution information, and wet and dry information of the water environment; an area determination module 62, based on the water environment The boundary information of the environment determines the corner points and outsourcing edges of the research area; the first grid generation module 63 determines the inclination angle, grid block distribution and different grid The scale of the unit grid in the grid block, so as to generate the first grid; the second grid generation module 64, based on the wet and dry information and boundary information of the water environment, the dryness and humidity of the unit grid in the first grid Wet conditions are identified and identified to generate a second grid.

[0050]It sh...

Embodiment 3

[0053] This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the grid generation method in the water environment simulation is implemented.

[0054] Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by hardware related to computer programs. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

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Abstract

The invention provides a grid generation method and device in water environment simulation, a storage medium and a terminal. The method comprises the following steps: acquiring boundary information, terrain distribution information and dry and wet information of a water environment; based on the boundary information of the water environment, determining an angular point and an outsourcing line ofa research area; determining an inclination angle, grid block distribution and scales of unit grids in different grid blocks on the basis of the angular points, the outer sidelines and the terrain distribution information of the water environment to generate a first grid; based on the dry and wet information and the boundary information of the water environment, identifying and identifying the dryand wet conditions of the unit grids in the first grid to generate a second grid. According to the grid generation method and device in water environment simulation, the storage medium and the terminal provided by the scheme of the invention, rectangular fine grids with different densities and different gradients can be generated, and the grid generation method and device have important significance for carrying out water environment numerical simulation and related research on complex water areas such as large lakes, reservoirs, large rivers and large rivers.

Description

technical field [0001] The invention relates to the technical field of water environment simulation, in particular to a grid generation method, device, storage medium and terminal in water environment simulation. Background technique [0002] Mesh generation technology is the link between geometric model and numerical algorithm, and it is the first step in the study of numerical simulation of water environment, and it is also a key step directly related to the simulation effect and its success or failure. Only when the geometric model is divided into certain standard grids can it be numerically solved. In the process of numerical simulation of the water environment, for example, when studying the hydrodynamics, water quality, sediment, temperature and salinity of the water area, the grid is the basic unit, and its type and size will affect the accuracy of the simulation. , stability and computational efficiency. According to different division methods, grids mainly include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCY02A90/10
Inventor 陈祖军林德银陈行
Owner SHANGHAI INVESTIGATION DESIGN & RES INST
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