SPH (smoothed particle hydrodynamics) algorithm-based simulation method and simulation system of process of breaking dam by flood

A technology of process simulation and flooding, applied in computing, special data processing applications, instruments, etc., can solve problems such as low accuracy of calculation results, inability to meet high-precision and high-simulation, and achieve realistic and high-precision effects
CN102708227AActive Publication Date: 2012-10-03自然资源部国土卫星遥感应用中心
3 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
自然资源部国土卫星遥感应用中心
Publication Date
2012-10-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an SPH (smoothed particle hydrodynamics) algorithm-based simulation method and an SPH (smoothed particle hydrodynamics) algorithm-based simulation system of the process of breaking dam by flood. The simulation method comprises the following steps: A. acquiring on-site geographic spatial information data; B. establishing a dynamical model of the process of breaking dam by flood based on the geographic spatial information data obtained in the step A; C. establishing a geographic entity model according to the geographic spatial information data obtained in the step A; D. analyzing the dynamical model obtained in the step B into an SPH calculation method; E. initializing the geographic entity model obtained in the step C to be hydrodynamics particles and boundary particles for the SPH calculation; F. circularly calculating based on the SPH algorithm; G. carrying out the spatial-temporal process modeling on the calculated value result obtained in the step F to obtain a 3D spatial-temporal model and a database of the process of breaking the dam by flood; and H. dynamically visualizing the 3D spatial-temporal model and the database of the process of breaking dam by flood obtained in the step G. By using the SPH method in the geographic process simulation, the authenticity of the simulation result is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of geoscience process simulation and geographic information system, and in particular relates to a flood dam break process simulation method and simulation system based on SPH (Smoothed Particle Hydrodynamics, smooth particle hydrodynamics) algorithm. Background technique

[0002] In recent years, geological disasters have occurred frequently in the world. The simulation of the geological process of disasters like floods and dam failures, which integrates multiple disciplines such as geosciences, computer graphics, simulation calculations, physics, and mathematics, is currently a research hotspot and difficulty.

[0003] In the field of geographic information systems, the traditional simulation method is realized by using empirical formula models such as geoscience models or mathematical models, that is, by analyzing the main influencing factors of the flood dam break process, such as slope and confluence, et...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More