High-conservation hydrological and hydrodynamic coupling simulation method

A simulation method and high conservation technology, applied in special data processing applications, instruments, data processing applications, etc., can solve problems such as affecting the timely release of results and slowing down the calculation speed.

Pending Publication Date: 2020-11-24
XIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the expansion of the research area, the use of a complete hydrodynamic model will bring calculation efficiency problems, slowing down the calculation speed and affecting the timely release of results
However, in practical applications, it is not necessary to use the hydrodynamic simulation of the whole area

Method used

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  • High-conservation hydrological and hydrodynamic coupling simulation method
  • High-conservation hydrological and hydrodynamic coupling simulation method
  • High-conservation hydrological and hydrodynamic coupling simulation method

Examples

Experimental program
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Embodiment

[0104] The example selects a community in Xi'an City, Shaanxi Province. figure 1 Shown is the pipe network layout map of the study area. The dots are rainwater well nodes, a total of 32; the black straight lines are rainwater pipes, a total of 31 sections; the triangle is a drainage system outlet, counting 1. In this simulation, the study area is divided into 10 sub-catchments, and the specific division results are as follows figure 2 shown. As shown in Tables 1 to 3, the sub-catchment partition parameters, rainwater well node parameters and pipe network parameters of the pipe network system are shown in this simulation. image 3 Show the rainfall data for this simulation.

[0105] Table 1 Parameters of sub-catchments

[0106]

[0107] Table 2 Node parameters

[0108] no x_Node y_Node dx_Node dy_Node be_Node se_Node 1 30 61 1 1 352.179 354.179 2 56 61 1 1 350.9618 352.9618 3 87 61 1 1 351.1706 353.1706

[0109] ...

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Abstract

The invention discloses a high-conservation hydrological and hydrodynamic coupling simulation method. The method specifically comprises the following steps: 1, collecting basic data of a research area; 2, setting basic parameters of the research area, wherein the basic parameters comprise peripheral boundary conditions, simulation time step length and simulation total time length of the research area; 3, calculating the runoff q'of the earth surface sub-backwater area of the research area; 4, conducting pipe network system simulation calculation, and obtaining the rainwater well water depth hnof the current time step length; and 5, judging whether the pipe network system is overloaded or not, and starting surface two-dimensional hydrodynamic simulation when the pipe network system is overloaded. The hydrological ground surface and the hydrodynamic pipe network are coupled through the rainwater well, the local submergence condition is considered through the hydrodynamic method, and theoverflow process of the pipe network overflowing on the ground surface is effectively simulated.

Description

technical field [0001] The invention belongs to the technical field of urban flood simulation and relates to a high conservation hydrology and hydrodynamic coupling simulation method. Background technique [0002] With the continuous acceleration of the urbanization process, the scope of the underlying surface of the city has increased sharply, resulting in significant changes in the natural and ecological systems of the main urban area and surrounding areas of the city, and has also had a great impact on the hydrological process in the urban area. . Changes in urban hydrological processes have gradually increased the threat of urban rainstorm disasters, such as public transportation, public and industrial electricity consumption, industrial production, and loss of people's lives and property caused by urban waterlogging. The urban rain and flood calculation model is an important method for describing the process of urban rain and flood and waterlogging in detail, analyzing...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/28G06Q50/26
CPCG06F30/20G06F30/28G06Q50/26
Inventor 侯精明张阳维李东来王添高徐军杨东白岗岗苏峰李轩李继成陈光照
Owner XIAN UNIV OF TECH
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